“…City Space Architecture / UN-Habitat Mystery shopping is a form of participant observation where the researcher interacts with the research participants being observed and stems from the field of cultural anthropology (Miller, 1998). The method is widely used in marketing (Miller, 1998, Collins et al, 2017, Yaoyuneyong et al, 2018 research and offers a possibility to identify different factors in the service delivery process (Jacob et al, 2018, Liu, 2015 and their effect on natural conditions (Grove and Fisk, 1992). It allows to test whether disabled consumers are treated equally or are discriminated against (Morrall, 1994, Wiele et al, 2005, Eskytė, 2019 and to address discrepancies between real and reported consumer and seller behaviour (Friedrichs et al, 1975, Kehagias et al, 2011.…”