I bought a zte maven 3 at 2:00 saturday september 17/ 2017 it was the only go phone they had in stoc

Friday the 16th I had a LG Phoenix that I liked but it got STOLEN. So I had to have something quickly cause I had to go to work. At 3:00 September 17/2017 maybe an hour after I bought it I returned to the at@t store. To return it because the message screen kept dropping every two seconds while I was texting. They wanted a 45 dollar restocking fee for a phone I only paid 32.00 for that had problems. So I kept it and got a different at@t phone from Wal-Mart. I called to get the unlock code for the zte maven 3 thrue customer service. I did the At t.comdevice/ unlock, Imei numbers phone number email everything required. And was denied the unlock code. Not only that, but they claimed that it wasn't an at@t phone. Then I am informed that I need to reactivate it and put it on a plan for 6 months before they will give me the unlock code to a phone that just seconds before I was told it wasn't even an at@t phone. I have been dealing with this for 5 days now and I'm getting really sick of it. The fact that it is only a 32.00 phone isn't the point. Its my phone, I walked into your at@t store and paid my cash for it. I own it, not At@t. I want an unlock Code for it. NOW