Hey guys, I got my iphone 5 from XDA marketplace(I got tired of going to the store everyday and come back empty. I wanted to get the phone at full retail price and that couldn't be done by pre-order online)and yeah, the phone doesn't have a receipt but I got it sealed in a box. It came out of the box with a ding on an edge. My question is can I add Applecare to it and get a different device or swap for a different device without a receipt? Please let me know. Thanks!