Ok so i got a 8gb iphone through bestbuy and the $100 deal. The day we started was feb. 26 after the first month we called att to cancel but we were 4 days late and they wouldnt proate the bill so i got slapped withe the second month bill. So i decoded to just stay throughthe month and get my moneys worth. So heres my question: what day should i call to avoid the third months bill?