AT&T refuses to unlock replacement phones when originals were already unlocked.
Having an ongoing disbut with AT&T. Last year I unlocked both my Lumia 920's under their unlock plan so I could use them on my trip overseas. Around 6 months later, both phones had to be replaced under warranty because of hardware problems.
Recently I travelled overseas and found out I couldn't use the new phones because they were locked to AT&T. So basically they replaced both my unlocked phones with locked phones!
So I called them up, and was told they cannot unlock the phones because I am still under contract, and will therefor have to pay an early termination fee.
What's up with this AT&T? How does this even make sense!
Soon to be former AT&T customer