I just recently went to t-mobile and switching my number from at&t to them. I was on a family share plan with my brother on at&t. For the first few hours the at&t and the t-mobile phone both worked, but then the at&t was canceled and removed from the account on att.com. I was wondering how at&t handles this. Do they send you the early termination fee bill or something, because I was still under contract for one year? Also since it was the last day of the billing cycle with at&t does the line get charged in full for the month of usage? Any one have any experience with this because under the account information at&t isn't saying anything but I thought there was a fee for canceling early. Any help would be appreciated.