Unlock Simlock IPhone XR purchased in USA and now in Germany
Last Novemer, I bought my phone in Pittsburgh at an AT&T store.
Now, I'm back home in Germany, but I can't manage to unlock the Simlock.
I've phoned the Helpdesk a few times, but sadly, I feel that I'm just getting the run around. The last worker said that it would work in a few hours, because a major update with the system would be complete by then. Well, it didn't work in a few hours.
I've also try to fill out an unlock device form using my IMEI number, but the website has 'Oops, been experiencing technical difficulties.'
I would be very very grateful for some suggestions.