Sim Unlocking a device, "active on the owner's account"
I went to a pawn shop and bought a Lenovo tablet (not blacklisted). I am not an AT&T customer, and it wasn't until later that I noticed that the tablet wasn't sim unlocked. I submitted an unlock request through the AT&T app, only to learn that the tablet still listed as active under the owner's account. I have to leave the US tomorrow. Is there any way I can unlock my tablet?