EPAM Systems Sr Data Engineer interview questions

Interview had almost 5 rounds with 2 codility test and 3 face to face interview. Technical interviews were good but the manager I interviewed with was very rude and ill spoken. At the end I got a positive feedback but I need to appear for another client interview after few days. But that never happened. Shocking thing is not even a single candidate was selected that day everyone got the same feedback as me and I am guessing no further process happened. Not sure what was the point of the whole process I am half expecting the company to be a fake one.