Improvement of Services for People with Disabilities by Public Administration in Silesian Province Poland

: The publication presents the results of extensive research analyzing the satisfaction with the services of people with disabilities. The goal of the study was to analyze the level of disabled customer service by city councils at the example of the Silesian Province in Poland and to determine the factors that affect the quality of service studied. The research was carried out in 33 municipal ofﬁces located in Poland in the Silesian Province on a sample of 2846 people with disabilities. The research shows that disability type has a signiﬁcant impact on the perceived level of disabled customer service. Moreover, the age of the disabled person has a signiﬁcant impact on the perceived level of service quality. It turns out that the younger people with disabilities are, the better they assess the level of quality of services provided by the surveyed ofﬁces.


Introduction
The contemporary development of the concept of Society 5.0 requires sustainability at every level of its functioning [1][2][3][4][5][6][7][8]. Particular attention should be paid to customer groups that were previously excluded or almost ignored by certain types of public services. People with disabilities are such a group. The people with disability have special needs which we should know in the process of sustainable urban development.
The problems of people with disability are very important nowadays because they are very specific and also common with many of today's policies, for example, European Union policies. The European Union Disability Strategy focused on eight priority areas: accessibility, participation, equality, employment, education and training, social protection health and external action. Fulfilment of those areas can bring a better quality of life for disables [9]. The level of services in public administration can influence many of the mentioned areas. An especially important problem is the accessibility to the municipal office buildings, the participation of the people with disability without barriers and equality-the service on the same level regardless of the level of disability. In addition, the new European accessibility act brings information about the role of the fulfilment of disabling needs in the European Union. This act points out that all service for people with disabilities should be done with adequate quality [10]. Especially in the case of accessibility of municipal office web pages, the accessibility for peoples with a disability is regulated by special EU directive from 2016. We think the problem of quality of municipal services for people with disabilities is very important from a social point of view and also is not well known and not exhaustively described in the scientific literature. It is a research gap worth investigating. It states that better accessibility should lead to a better quality of life for peoples with a disability because of easier access to public services [11]. This publication presents the results of research on the quality level of services rendered for people with disabilities. The research was conducted on the sample of municipal offices located in Poland in the Silesian Province. On the basis of identified research gap we formulate the goal of our research.

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to investigate the impact of social and disability variables of the perceived level of quality of life, • to investigate if the comparison of the quality level of investigated municipal office with other municipal offices affects the perceived quality of services.

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We think that analysis of the level of quality peoples with a disability can improve the sustainable development of the urban area from the adjustment of municipal offices service point of view. This is an important part of building sustainable communities adjusted to all group of peoples.
Based on the identified research gap and research goals, we formulated our hypnosis's. We wanted to know if social and disability variables have an impact on the perceived quality of life because we think that this problem is important in the process of public service planning. When we know what kind of people with disability (from the degree of disability, disable type, education or age point of view) perceive the service as good or bad we can adjust the services and try to prepare special service of a particular type of people.
The following hypotheses were made in the research: Hypothesis 1 (H1): Social and disability variables have a significant impact on the perceived level of quality of disabled customer service.

Hypothesis 2 (H2):
The degree of disability has a significant impact on the perceived level of quality of disabled customer service.

Hypothesis 3 (H3):
Disability type has a significant impact on the perceived level of disabled customer service.
Hypothesis 4 (H4): Education of a disabled person has a significant impact on the perceived level of quality of disabled customer service.

Hypothesis 5 (H5):
The age of the disabled person has a significant impact on the assessment of the perceived level of service quality.

Hypothesis 6 (H6):
The assessment of a given office compared to other offices has a significant impact on the perceived level of quality of services provided by a given city hall for people with disabilities.

Disabilities and Their Characteristic
Persons with disabilities function in all societies worldwide. The share of people with disabilities in the global population in individual countries, depending on the definition of the term "disability" and the way data is collected and classified, ranges from a dozen or so per cent to one-fifth of all humanity [12][13][14][15]. The World Health Organization (WHO) introduced the following concept of disability, taking into account the state of human health "Impairment-any loss of fitness or irregularity in the structure or functioning of the body in psychological, psychophysical or anatomical terms, disability-any limitation or inability (resulting from disability) of conducting activity living in a way or to the extent considered atypical for people, limitations in the performance of social roles, disability of a specific person resulting from or preventing the full fulfilment of a social role corresponding to age, sex and in accordance with social and cultural conditions [16][17][18][19]. Another definition of disability is presented in the Act on Vocational and Social Rehabilitation and Employment of Disabled People: "Disability is a permanent or temporary inability to fulfil social roles due to permanent or long-term violation of the body's fitness, in particular causing an inability to work" [20,21]. This Act defines three degrees of disability: severe, moderate and light. On 1 August 1997, the Sejm [the House] of the Republic of Poland adopted the Charter on In each model presented (Table 1), disability is seen as a loss of fitness. Classification criteria that are the basis for a person to be considered disabled are related to biological, social and functional standards [41].

Barriers and Problems with the Services by the Public Administration
Due to the subject of this article, the social context of the problem of people with disabilities is further discussed. In recent years, there have been positive changes in public awareness related to the place and role of disabled people in society. These changes are associated with the fight against the exclusion of people with disabilities and with the increase in social programs that draw attention to the social and economic integration of all people functioning in society, including people with disabilities [42][43][44][45]. The latest UN documents on people with disabilities contain provisions and solutions for equal opportunities and social and professional promotion of people with disabilities. In 2001, the International Classification of Functioning, Disability and Health-IFC was presented at the World Health Assembly regarding the social context of disability issues. This document indicates that disability affects all of humanity and that social minorities should not be burdened with problems related to the disability [46][47][48][49][50]. The summary of this document concludes that anyone can experience deterioration and become disabled. In recent years, in addition to the document presented above, there have also been others that concern people with disabilities and normalize their lives. Among them, the most important are the Universal Declaration of Human Rights, the Declaration of the Rights of the Child, the  [51][52][53].
The Madrid Declaration is currently one of the most important documents containing issues related to people with disabilities [54]. This document assumes the following:

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Disability is a matter of human rights.

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People with disabilities demand equal opportunities, not pity. • Barriers in society lead to discrimination and social exiting.

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People with disabilities are a diverse group of people. • Nondiscrimination + positive action = social inclusion.
In Poland, the Sejm (the House) of the Republic of Poland in the Charter of the Rights of Persons with Disabilities included information that, according to legal and customary norms, "disabled persons have the right to an independent, autonomous and active life and may not be subject to discrimination" [55]. Based on this provision, all disabled people have the right to "access to goods and services allowing full participation in social life, living in an environment free of functional barriers, including access to offices, polling stations and public facilities, free movement, access to information, opportunities for interpersonal communication and participation in social, cultural and artistic life." Pursuant to the provisions in the Charter of the Rights of Persons with Disabilities, people with disabilities must have the right and equal access to services facilitating participation in social life [56][57][58][59][60]. Public services are among the services that disabled people must use. The use of public administration services by disabled people is not always free from obstacles and barriers that may be encountered during visits to offices. The most important obstacles include: finding and obtaining forms and necessary information, both during visits to these facilities and when using public e-services, moving people with disabilities around public administration offices, no lifts adapted for the disabled [61].
Some of the barriers that disabled people may encounter when using public administration offices are:

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Logistic barriers related to arrival at the public administration office.

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Architectural barriers that are associated with problems with the mobility of a disabled person around the building.

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Organizational and information barriers.
Logistic barriers are primarily associated with disabled people arriving to the office, using public transport, waiting for a bus or tram and having to change means of transportation. People with disabilities who drive their own vehicles may have problems trying to find a parking space close to the entrance to public administration offices.
Organizational and information barriers are associated with a direct visit to public administration office or with the use of public e-services. These barriers are easiest to remove by using the following facilities for people with disabilities: easily navigated and legible websites, which should allow people with disabilities conclude all formalities in public administration offices without leaving home, e.g., download and fill out relevant forms; posting legible signs on appropriate rooms in public administration buildings; large and clear information boards; properly marked routes to individual departments in public administration offices; a properly organized reception so that disabled people can easily get all necessary information; providing the customer service office with visual aids (letter templates, building plans); people working in such offices should know sign language and be trained to work with people with varying degrees of disability. Hiring a disabled person's assistant who would help in managing all necessary matters.
Architectural barriers that hinder the use of public administration buildings for people with disabilities are most often associated with the design and construction of buildings. To eliminate such barriers, the following solutions can be proposed: providing bumps on surfaces allowing blind people to orient themselves and detectable warnings at appropriate navigation points [62][63][64].
The terminological and definitional considerations presented above have shown that the quality of life of people with disabilities is perceived in the category of interdisciplinary issues concerning the economic, medical and social plane, as shown on the example of disability models (Table 1). In recent years, many works on theoretical issues related to the quality of life of people with disabilities have been presented in world and Polish literature. The main purpose of these publications was to determine to what extent the types and degree of disability affect the quality of life. In addition, researchers are trying to determine what factors may affect the quality of life of people with disabilities. According to M. Garbat and M. A. Paszkowicz [65], as well as P. Borowiecki, [66] the quality of life of people with disabilities is influenced by external factors, which include: architectural and technical barriers, such as rehabilitation equipment, door width, access to public institutions, transport, and moving around by public transport and access to the Internet, a computer. In addition to the above-mentioned external factors, the quality of life of people with disabilities is also affected by the lack of employment, insufficient funds for rehabilitation and the quality of contacts with relatives. K. Pawłowska-Cyprysiak, M. Konarska and D.Żołnierczyk-Zreda [67] believe that the quality of life of people with disabilities is largely influenced by socio-demographic factors such as place of residence, level of education, duration of disability, age and marital status. The literature also included research on the sense of the quality of life of people with disabilities. Z. Palak, D Chomicz and A. Pawlak [68] used the Sense of Quality of Life Questionnaire by Schalock and Keith in their research. This questionnaire highlights the following factors: a sense of social integration, independence and self-reliance. The research conducted by the authors has shown that the type of disability has a large impact on the sense of the quality of life. The problem of the sense of the quality of life of people with disabilities was also investigated by R Smoleń [69]. In their research, they measured the sense of the quality of life of young people with intellectual disabilities and used the Deiner and Emmons Scale of Satisfaction with Life. Based on the presented research-the sense of the quality of life, it was found that the social and family spheres are the greatest problems for people with disabilities. The conducted query allowed for the collection of literature related to the level of quality of life of people with disabilities due to medical, economic and social factors that affect the perception and sense of the quality of life by people with disabilities. There are no studies in the literature showing how the quality of provided services is assessed by people with disabilities who have to use public administration, e.g., municipal offices, daily.
On this basis, a research gap was identified related to the improvement of the quality of services provided to persons with disabilities by the public administration. This issue is important from the point of view of improving the quality of life of people with disabilities and their social integration [70][71][72][73][74][75][76][77].

Methods and Materials
The research analyzed in the paper was carried out in Poland using the Silesian Province as an example. The Silesian Province is the most densely populated in Poland, with the highest percentage of cities. In the Silesian Province, there are 71 cities. Based on pilot studies we calculated the minimal size of the sample. In our research, there was Sustainability 2021, 13, 967 7 of 26 20 cities and 1200 respondents. The research was carried out on a randomly selected sample of 33 cities located in the Silesian Province from the list of 71 existing cities.
Within each city, the study enrolled a random sample of disabled people surveyed. In total, after rejecting incorrectly completed surveys, 2846 correctly completed surveys by disabled persons using the municipal office services in the examined cities of the Silesian Province were received. We recruited subjects from various associations of disabled people functioning in Silesian province. We achieved 3 incomplete questionaries' which could not be used in the analysis. This bias has not a significant impact on the results.
In the conducted research, five types of disability were distinguished with the following structure of respondents: • educed sensory performance-lack, damage or disruption of the functions of sensory analyzers (these include blind, visually impaired, deaf and hearing-impaired people with visual and auditory perception disorders)-a total of 644 respondents; • reduced intellectual performance-intellectual disability-182 respondents; • reduced efficiency of social functioning-disorders of nervous and emotional balance-399 respondents; • reduced communication efficiency-difficult verbal contact (speech disorders, autism, stuttering)-444 respondents; • reduced mobility-people with locomotor dysfunction-1153 respondents.
Twenty-four respondents did not state their disability in the survey.
Using the expert, Delphi method for the quality of services, 32 variables were distinguished in the research. In the expert method, we send questionnaires to 30 experts dealing with problems of people with disability in Poland [78][79][80][81][82]. Ten of them were people with disability, ten were people from municipal offices-plenipotentiaries for people with disabilities and ten academic specialists from the people with disabilities quality of life field. We prepared questionnaires', based on the quality of life literature, with many variables connected to the quality of service measure. The expert assessed which variables are important. We use in our research dose variable which was seen as important by experts. Next, after research, we calculated alfa-Cronbach to analyses the reliability of coefficient and based on the results, we decided that we can use the questionnaire in research [83,84].
We distinguished the following variables: • J24-putting the good of the customer as the primary goal, • J25-forbearance and patience with customers, • J26-knowledge of good practices for servicing disabled people by officials, • J27-officials turn to people with hearing impairments using a suitable device, • J28-officials talk to the hearing impaired in a separate room, • J29-the office has an employee who knows sign language, • J30-officials can serve customers with a service dog, • J31-officials can serve customers with a service dog, • J32-the office is equipped with special frames facilitating the signing of the document.
We measured disability severity dividing disability into three levels: significant, moderate and low. This division is by polish low was this division is commonly used. All variables regarding the quality level were rated on a typical Servqual 1−7 scale, wherein the case of expected quality 1 means that the variable is not expected by the customer, while 7 means that it is very strongly expected; in the case of perceived quality, 1 means that the variable is implemented by the municipal office at a very poor level, while 7 means that it is implemented at a very good level. Various types of quantitative methods of statistical data analysis were used to analyze the results of research collected during actual research. Calculations for the needs of the study were made using an Excel spreadsheet and Statistica 13.0 package.
The normality of variables was determined using the following tests: Kolomongorov-Smirnov test for large trials and Shapiro-Wilk test for small trials. In most cases, because division and nominal scales were used, the examined variables could not be considered normal; therefore, nonparametric tests were used for their further analysis. For the dependence of categorized traits, which usually cannot be treated as normal variables and do not meet the Shapiro-Wilk and Kolomongorov-Smirnov normality tests with the Lilliefors correction, the nonparametric ANOVA Kruskal-Wallis test was used, as it does not require a normal distribution of the examined traits. Mann-Whitney U test was used to assess differences between the studied groups in situations where variable distributions were not normal.
Because one of the variables was nominal when calculating the coefficients of dependence between variables, the Cramér's V convergence coefficient was calculated for tables with different numbers of rows and columns.
The research tool developed was tested using Cronbach's alpha measure. This factor takes values from the range [0, 1]. It is the bottom measure of the reliability estimator and is used for one-dimensional scales. It is recommended that for ordinal scales related to attitude measurement it should be at least 0.7. For all examined variables, the obtained scale reliability was assumed to be above 0.7.

Results
In the case of analyzing issues related to disabled customer service, the total level of quality is calculated by the difference between perceived and expected quality. Figure 1 presents the results of research on the calculated level of quality of disabled customer service for individual 32 variables included in the analysis. To assess the level of variables, the linguistic variables characterized in the previous section were used.
If possible, please copy this symbol here "−" to use it as the minus sign. Among the variables examined, concerning the level of quality of disabled customer service in municipal offices, the following issues were assessed at a good level: In the case of analyzing issues related to disabled customer service, the total level of quality is calculated by the difference between perceived and expected quality. Figure 1 presents the results of research on the calculated level of quality of disabled customer service for individual 32 variables included in the analysis. To assess the level of variables, the linguistic variables characterized in the previous section were used.  At the very poor level, two variables were assessed-the office opening hours (−2.05) and sign language skills by the office employees (−2.03). Respondents point out that the office should also be open in the afternoon and on weekends. Interestingly, this variable got the lowest rating, even though it was one of the least significant in terms of customer expectations. Nevertheless, despite low expectations, a very poor assessment of perceived quality means that this is the problem with the worst level of quality. Variables that have been assessed as bad include: • support for people with hearing impairments using a suitable device (−2); • speed of response to emails (−1.91)-it is worth paying attention to this problem, especially in the context of using e-administration as a solution to the problem of inconvenient office opening hours; • proper customer service the first time (−1.88); • service for people with a service dog (−1.84); • talking to a person with hearing impairment in a separate room (−1.82); • service up to the last customer, even when the office business hours end (1.75).
The analysis of the results from the point of view of the type of disability is summarized in Table 2. Based on the analysis by the nonparametric ANOVA Kruskal-Wallis test, there were statistically significant differences (α = 0.01) for variables J1, J16 and J20. On average, the rate slightly better the level of service for people with a mild degree of disability (−1.49) compared to a moderate level (−1.56) or people with a significant degree of disability (−1.57). The results confirm, but only to a very limited extent, the H2 hypothesis that the degree of disability affects the level of disabled customer service. For most variables, no such relationship was observed.
According to the Cramér's V correlation coefficient at the level of statistical significance α = 0.01, correlations occur between variables J16 and J20 and the degree of disability. Their values oscillate around 0.06, so they are at a very low level, but they are statistically significant.
The phenomenon is understandable, because the higher the level of disability, the easier it is for a person to notice any service shortcomings, although such shortcomings are not always and only those directly related to the difficulties of the disabled person's functioning in public space. This is obvious in the example of one of the statistically significant variables regarding the polite and friendly attitude of officials to customers. For people with mild disability, the rating is −1.29; those who have a moderate level of disability, rate it as −1.44; while the rating by people with a significant degree of disability is −1.62. This proves that the degree of disability affects in some way the perception of the world and the behavior of other people towards us and is not always directly related to disability issues. Table 2 also presents an assessment of the quality of customer service broken down by disability types. For the dependence analysis, the nonparametric ANOVA Kruskal-Wallis test was used, which is fulfilled at the highest significance level of α = 0.001 for many variables applied in the subjects tested: J1, J2, J7, J8, J10, J11, J13, J16, J17, J18, J27, J28, J29, J30. This means that these variables differ in a statistically significant manner depending on the type of disability of the respondents.
The obtained research results confirm the H3 hypothesis that the type of disability has a significant impact on the perceived level of disabled customer service. The worst quality of customer service is assessed in the surveyed city offices by people who have reduced social performance (−1.7). These are people with nervous or emotional disorders who are easily getting anxious and therefore negatively perceive many aspects of the level of service in offices. This can be seen even in the case of the variable regarding office opening hours, where there are no other logical reasons why people with reduced efficiency of social functioning assess it as the worst. Such customers rate the office opening hours as very bad (score −2.36), while, conversely, people with reduced sensory performance rate the same variable at the level of −1.89.
The case of the variable concerning the willingness to help customers by officials is similar. Again, it seems that this help is more needed for people with reduced mobility or reduced communication skills. Meanwhile, people with reduced social performance again rated officials as the worst, i.e., as 1.97; while the same problem is assessed by people with reduced mobility at the level of −1.57; while by people with reduced communication efficiency at the level of −1.52. Most of the variables related to the level of customer service are correlated with the type of disability, according to the Cramér's V correlation coefficient at the significance level α = 0.01. The correlations fall in the range between 0.06 and 0.08.
In the next stage, researchers decided to check whether the education of surveyed people with disabilities affects the results of customer satisfaction surveys on the services provided by the municipal office (Table 3). Research shows that education has very little effect on research results. The H4 hypothesis that the education of a disabled person has a statistically significant impact on the perceived level of quality of disabled customer service has not been confirmed. Based on the nonparametric ANOVA Kruskal-Wallis test, statistically significant relationships were found at the significance level α = 0.05 for three variables: J6, J9 and J24. For these variables, it is not possible to determine any trend as to people with what kind of education perceive the examined variables better. For example, the timeliness of the service is rated best by people with elementary education (−1.45) and the worst by people with higher education (−1.61); the variable of quick resolution of customer matters is rated highest by people with higher education (−1.61), and the worst by people with secondary education (−1.75).   Table 4 also summarizes the assessment of disabled customer service levels by municipal offices from the perspective of the age of the disabled person. The data shows that the quality of services provided by the office is best assessed by young people, while with age, criticism in this area increases. Respectively, people under the age of 20 assess the quality of services in offices as −1.37; those in the range of 20-39 assign it the rating of −1.49; people aged 40-49 assess the discussed issue at the level of −1.6; while disabled people aged 50 and over assess the quality level as −1.63.
The analyzes presented in the paper confirmed the H5 hypothesis that the age of the disabled person affects the assessment of the perceived level of service quality.
The nonparametric ANOVA Kruskal-Wallis test confirmed the existence of statistically significant relationships (found at the highest significance level α = 0.001) among such variables as J3, J4, J5, J14, J27.
For most of the variables studied, negative Cramér's V correlations can be observed between the age of the disabled people surveyed and most of the variables studied. These correlations are statistically significant at the level of α = 0.01 but have a very small value (from 0.05 to 0.08).
ANOVA Kruskal-Wallis analysis showed that the assessment of a given office compared to others is a variable that strongly differentiates the level of disabled customer service in a given office. At the level of statistical significance α = 0.001, there are differences among all variables except J3, J23, J26, J27 and J29. The higher the office's rating compared to others, the higher the disabled clients rate it. People who believe that the surveyed service in one office is much worse than in other offices rated it at −2.46; people claiming that it is not much worse, rated it at the level of −1.96, while people who think that the service is much better, rate the given office at the level of −1.31 (Table 4). It is again obvious that previous experience and knowledge of good service affects customer assessments. When a person comes across facilities where service is exemplary, then they assess the average service in other places as much worse. Conversely, if a person has never encountered good customer service, they tend to treat even poor customer service as something normal, which though not the best is typical.
Cramér's V correlation coefficients for the relationship between the examined variables and the office assessment against other institutions are positive and range from 0.08 to 0.17. They are statistically significant at a high level of α = 0.001.
The results concerning the relationship between the variables examined regarding the quality of customer service and the assessment of the office against other institutions used by the examined persons confirm the H6 hypothesis-the assessment of a given office compared to other has an impact on the perceived quality level of services provided by a given municipal office for people with disabilities. When people with disability have contact with other municipal offices with a better level of services, they tend to worst perceive the level of services in the particular municipal office.
In the next stage of the research, 32 individual variables were analyzed in terms of the quality level of disabled customer service by municipal offices from the point of view of the cities studied. The results of the tests for individual variables are summarized in Tables 5-8, while Figure 2 presents the aggregate results of the quality of service for individual cities studied.
As results from the conducted research show, issues concerning the quality level of disabled customer service were rated as good in cities such as:    Research shows that city office located in small cities were rated best. Most likely, the cozy atmosphere prevailing in these offices and the personal relations between officials and a given disabled person cause ratings to be high in such cities.
At a very poor level, the quality of services provided by municipal offices was assessed by disabled people in the following cities:     The most important findings of our study based on the presented particular results are: • The identification of the problematic areas in quality of services for peoples with disability in municipal offices: especially-problems with a fast response on e-mails, service to the last customer and also some problems with special services for customers with particular types of disability, for example, hearing impairment.

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We found out that disability type impacts the perceived level of quality. Each type of disability needs special, different approach because is linked with different impairments and different needs.

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We found that the level of education does not have statistically significant impact on the perceived quality of services. Regardless of the educational level, the people with disability perceive the quality of service level in municipal office similarly.

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We found out that the age of a person impacts on a statistically significant level on the perceived level of service quality in the municipal office. The older is the customer, the worse he will perceive service quality. The municipal office authorities should think about it in the process of service planning and assessment. They should pay special attention to people with disabilities older than 50 years because they have special needs and they do not always have appropriate knowledge about new technologies for example information technology.

Discussion and Conclusions
In recent years, there have been positive changes in public awareness related to the place and role of disabled people in modern society [44]. These changes make us feel optimistic and are a consequence of the growing social integration of people with disabilities [20,21,26].
The process of sustainable urban planning and especially the process of building sustainable communities should lead to the fulfilment of all city dwellers. A very important group of those people are persons with disabilities. For disabled people who use public administration, two things are important: firstly, the issue of access to public space related to architectural barriers and their elimination, and secondly, the level of quality of service offered by public administration to people with disabilities (in particular, attention should be paid to the role of e-administration development from the perspective of people with disabilities) [16,17,85].
Both access to public space and the appropriate level of services provided for people with disabilities are in line with the strategy of sustainable development and the concept of Society 5.0, i.e., "A human-oriented society in which economic progress that includes solutions to social issues is balanced by a system offering high integration of digital space and real." [1][2][3].
An important factor in the implementation of society 5.0 is the inclusion of excluded groups in terms of access to public areas [86]. In this context, a particularly important group are people with disabilities who require special attention, because the level of customer service that can be perceived as positive by typical customers is not always sufficient for people with disabilities. To date, the literature has dealt with the issue of examining the level of service for a disabled customer [87][88][89][90][91]; however, issues regarding the quality of customer service in municipal offices have not been discussed to a greater extent. The literature, especially the references concerning public management, emphasizes the importance of paying attention to people with disabilities by public administration [45,92,93].
Based on the previous research, a moderate level of satisfaction was found in the disabled persons surveyed with the services rendered. Test results confirm other research conducted worldwide, for example, the results obtained by Habib et al. for Bangladesh [89].
In particular, in the context of this publication, organizational and information barriers are important, as they cause problems in communication between officials and people with disabilities [27][28][29]. The research shows that it is especially important to provide appropriate devices that allow communication with people with disabilities, such as, for example, with people with hearing or vision impairments. A very important factor is also the development of e-administration, which will improve the service of people with disabilities. Issues regarding the positive impact of e-administration used in disabled customer services have been raised in global studies [94][95][96]. Based on the research presented in this publication, we can say that this factor could allow providing better service to people with disabilities.
Ensuring better service for disabled customers will allow for better implementation of the concept of sustainable development and the idea of Society 5.0 [5,6]. As a result of the improved service for this group of customers, it is possible to improve their quality of life and facilitate their functioning in society. The research shows that the adjustment of the method of service to the type of disability is a particularly important issue, as this type has a statistically significant effect on the perceived quality of services. This is in line with the disability models discussed in the literature [27][28][29][38][39][40]. In particular, the focus should be on people with reduced efficiency of social functioning, who perceive the quality of service in the examined offices as particularly inadequate [84,[97][98][99][100]. For this group of the disabled, the organizational and information barriers discussed are a particularly important factor [62][63][64] and the offices should make an effort to limit their impact, by such steps as training employees in terms of disabled customer service.
Good, high-quality service to excluded people, namely people with disabilities, is an important factor in implementing the concept of sustainable development and Society 5.0 in the city. In addition, paying attention to excluded people is important for implementing the currently popular concept of Smart City [101,102]. When we pay attention to the needs of those group of people, we can adjust the city to sustainable communities conception.
In the scope of testing the quality of customer service in city offices from the perspective of the disabled person, the results show that the best-rated variables include: • well-groomed and neat appearance of officials (−079 rating); • renovated and attractive office building (−0.84).
However, issues that cause problems in the disabled customer service process are: • support for people with hearing impairments using a suitable device (−2); • speed of response to emails (−1.91)-it is worth paying attention to this problem, especially in the context of using e-administration as a solution to the problem of inconvenient office opening hours; • proper customer service the first time (−1.88); • service for people with a service dog (−1.84); • talking to a person with hearing impairment in a separate room (−1.82); • service up to the last customer, even when the office business hours end (−1.75).
The research shows that the type of disability has a significant impact on the perceived level of disabled customer service, which supports the H3 hypothesis.
Research results also support the H5 hypothesis that the age of the disabled person affects the assessment of the perceived quality service level. It turns out that young people assess the quality of services provided by the municipal office well, but as they age, their criticism in this area increases. Respectively, people under the age of 20 assess the quality of services in offices as −1.37; those in the range of 20-39 assign it the rating of −1.49; people aged 40-49 assess the discussed issue at the level of −1.6; while disabled people aged 50 and over assess the quality level as −1.63.
The higher the office's rating compared to others, the higher the disabled clients rate it. People who believe that the surveyed service is much worse than in other offices rated it at −2.46; people claiming that it is not much worse, rated it at the level of −1.96, while people who think that the service is much better, rate the given office at the level of −1.31. Research also shows that previous experience and knowledge of good service affect customer assessments. When an individual has previously dealt with facilities in which service is exemplary, then they assess the average service in other places much worse, and vice versa; if a person has never dealt with good service, they tend to treat even poor customer service as something normal.
Research results do not support the H6 hypothesis regarding the significant impact of the degree of disability on the perceived level of disabled customer service and the H4 hypothesis regarding the significant impact of the disabled person's education on the perceived level of quality of disabled customer service.
Based on our results we think that the municipal offices should be betted adjust they offer to the customer with disability needs. According to European Union documents [9][10][11], needs of all the people with disability should be fulfilled on the same level regardless of they: disability type, disability level, age etc. Unfortunately, it is not always possible to achieve this rule in researched municipal offices. Persons with disability in older age and with special types of disability (for example, hearing disability) perceive the level of services in municipal offices worse than others. This group have their particular needs which should be fulfilled by the official authorities. They should try to improve the services to better adjust them to their needs. For example, employers should participate in training in the field of handling and dealing with people with hearing disbarment. In addition, they should pay attention to older people-they should inform employers that this group of customers need special care. They in many situations cannot use properly new technologies-computers, mobile devices and when contracting with them we should give them information's in an as simple way as is possible [103,104]. In addition, we can send for training not only employers but also organize free training about e-administration and the usage of informatics technology for older people.
The results concerning the relationship between the examined variables of the analysis of the quality of customer service and the assessment of the office compared to other institutions used by the surveyed people support the H6 hypothesis, which reads that the assessment of a given office compared to others has an impact on the perceived level of quality of services provided by a given municipal office for people with disabilities.
The limitations of the research are the fact that it was performed on a sample of cities from one province in one country. Statistically, the sample was reliable, but it is difficult to generalize the results to other regions of Poland. Operationalization of variables is also a limitation of the research. The set of 32 variables identified using the expert method is one of many possible methods of operationalization of service quality issues.