Hi, so on the 8th of june i ordered a replacement phone for my atrix. Everything was fine and the new phone came. I packed everything up and i went to the post office to ship it back out on the 14th. I keep getting text messages from at&t that i have not returned my device. It has been 4 business days since i shipped the broken phone out and at&t should of received it by now and i am getting worried that they will charge me $500. Does anybody know how long it usually takes for the defective phones to ship back? Or how long at&t takes to realize they actually have my defective phone? Thank you!