I bought iPhoneX at AT&T store and after 2 months it had a system malfunction. I called apple and they replaced that phone with a new phone. Now, after 6 months I called AT&T to unlock my phone and they are saying that I haven't used the service for 6 months so I have to wait to get it unlocked. But I fulfilled my 6 months its not my fault that the phone had a malfunction and Apple had to replace it with a new IEMI number. I don't know what to do. I wasted more than $1300 for nothing. I am traveling in 3 days and I don't have a phone.