TIAA Database Administrator interview questions

I was interviewed at TIAA Mumbai through staffing agency in month of July 2016. Overall interview experience was average.There were 4 rounds where round 1 being merittrac test which was irrelevant. Questions were outdated compared to technology being used at TIAA. Round 2 ,3 and 4 were more on technical skills with easy questions. I went through and cleared all the rounds and was told that I was selected and would get offer in a week's time.But after several follow-ups and no clear communication even after a months time , it seems I wasted my precious time and efforts.