I am working in my present company for the last 1.8 years. My contract with the company has already ended. Now I am switching to another company. In my contract, my notice period is 90 days. However, as my contract is already over, I provided a notice period of 30 days. I have already informed my manager, and he has verbally confirmed it. Just 10 days before my departure, my manager provided an official acceptance with a 60-day notice period. So, what should I do?