So on 9/29 I shipped my 3 NEXT iPhone 6 devices back to ATT as "NEXT returns" using the 3 separate prepaid labels that were generated by Apple when I purchased my 3 new iPhone 6s devices. On 10/8 I received text messages from ATT on all 3 new devices saying: "Thank you for returning your BBA APL IPHONE6 64GB SLV for xxxxxxxxxx." So clearly they received my phone. Strange thing is that this morning I got a text message from ATT on two of the 3 new iPhone 6s devices saying that "We didn't receive your previous device by 10/21/15. You will see a charge of $299.6 for your BBA APL IPHONE6 64GB SLV on your next wireless bill." WTF? So I checked the USPS tracking with the numbers I recorded before shipping on 9/29, and ALL 3 still say "In Transit"!! Unbelievable! Next I called ATT and they say they only show receipt of 1 of the phones and not the other two! ATT says that there is a pending charge that will be added on 10/26 for the 2 devices but that they will "try to research this and get it removed by then." But if they aren't successful? What then?? They just charge me? So to summarize: We received texts for all 3 on 10/8 saying ATT received them in good working order. All 3 phones USPS Tracking say "In Transit" on USPS Tracking page. Today we received texts for 2 saying that they were not received yet. My ATT account page says there are no more payments due for any of the 3 phones. ATT says they only show receipt of 1 device Has anyone else experienced anything like this with their ATT NEXT returns? I had a bad feeling about shipping them back to ATT since they provide no tracking ability on their website anywhere to determine the status of a NEXT return. You have to just wait for a text from them! It's like sending the device to a black hole and hoping for the best. And of course USPS is worthless in this whole saga. They don't even show that the packages were received (not even the one that ATT even confirms they received). Any advice on how to proceed would be appreciated.