EPAM Systems Senior Software Engineer interview questions

I was interviewed here, had two rounds of lengthy interview. Cleared both. HR provided me a really low offer saying that they will change the offer in the last week before joining. In addition to this she also gave me a joining date of 40 days even though I clearly mentioned that my notice period is 60days. On questioning this she said she will update the joining date in the last week of notice period. Dear epam such employees of yours are wasting the time of the candidates and the interviewers as they are forcing the candidates to lose trust and interest in the company. All you will get on the last week of notice period is the candidate saying they moved on with another company as you didn't provide neither the right joining date or package in writing.