I switched from Sprint to AT&T back in Nov 2016 because I didn’t have good service and would have a lot of dropped calls. I spoke to Erjaia from customer service on Nov 10, 2016 and he told me what credits I would get back on each phone once I returned my phones which was $81.71, which I had no problem of paying and he would send me a return kit. After several phone calls to Sprints customer service letting them know I never received the kit they kept on saying they will send it to me. Several months later I end up getting a phone call from collections telling me I owe $1260.00 and I let her know the situation and she said that was not her problem and that was my problem and I needed to pay up! Is there anything I can do to dispute this off my credit report? Please help!