Trade-in Program - Sent phone to incorrect address
I ordered a new phone under the trade-in program. I received my new phone on 29 Sept 2020. I activated my new phone and set everything up. A week later I sent my old phone to att in the same box I received my new phone. On 12 Nov 2020, I received mail labeled "ATT Trade-in Program" with a padded envelope. At this point I realized I mistakenly sent my old phone using the return label from the new phone.
What do I need to doin order to get a hold of my old phone and have it sent to the correct location? Please help.