Ported one line out of At&t but now i would like to bring it back
I had 3 lines with At&t. After paying a phone off i tried "saving" money by porting the line out to another provider. It was 25 days ago. I am not happy with the service and would like to bring the line back to AT&T with my others. I have chatted with customer service, who told me they could not help. I then went to a corporate store and the representative was very confused as what to do. I have the port out pin for the number. Who do i need to speak to so i can bring this line back?