“…Marketing activity based on the refinement of the service offer gains more and more great significance, what is connected with the competitiveness increase (Karcz and Ślusarczyk, 2016;Oláh et al, 2018). The quality of products and services is considered as a crucial success factor of the company now and in the future (Styś, 2003;Kljucnikovet al, 2016;Popovic et al, 2018;Akhmetova andSuleimenova, 2018, Kolben, 2014). Critical features of the perceived service quality are above all (Bielska, 2006):…”