i was just informed by metlife that i needed to fax in my ssdi acceptance letter to determine my overpayment. i'm getting 1069.00 from ssdi, metlife gave me 1210.00 a month. went on disabilty in jan of 2010. how do they figure out the overpayment amount? i'm afraid i'm not going to be able to repay them. what could happen if they dont get paid? someone please help.