EY Account Support Associate interview questions

I applied through an employee referral at the Bangalore RMZ Ecospace office and had a pretty poor experience during my interview process. There were basically three rounds - First one was the aptitude test which had questions related to calculations, reasoning, MS Excel and English language. Though my test went pretty well but I was told I didn't make it through. Being the last candidate for the day, I was lucky that I got to see the answer key(solutions) for the test and it was found out that the answer key was wrong and I was told I will get to appear for the personal interview rounds after three days. Second round was the HR interview round which went on pretty smoothly and took hardly half an hour and I was asked to come back after a couple of hours for the last round. Last round was again a HR interview but with the team lead and it went on for almost an hour. It was pretty much like the previous round but comparatively it was more formally conducted. After this I was told I'd be informed about the result over the phone, mostly by the next day. I waited for a couple of weeks and contacted their HR person several times after that who kept stalling me and eventually told me I didn't make it through because company is not ready for the compensation which I had demanded, whereas I had agreed to work at the offered compensation when asked by the interviewer in the final round. On the whole, I'd say when a firm like EY which has such a global impact, fails to show even average levels of professionalism, it questions the integrity of the firm and what it stands for.