Horrible Customer Service, They gave me the run around when I tried to unlock my phone that I paid them for and waited over the 48 hour time period. I have been a customer for over 15 years and they had me on the unlimited plan I chose about a year ago, then all the sudden my bill goes up $75 a month and they try to tell me that's how much it has been! I had them look at my previous bills and they couldn't even argue but said that's the price now. I still have not been able to unlock my phone and have to ask them to refund my payment for the phone. AT&T LOST ME FOREVER! I HAD 6 LINES WITH THEM.