Unlocking our iPhones

I have four devices that are no longer on contract. We paid the $125 penalty per device to get out of the contract, all of which were up in 2 months. We have also paid any outstanding payments due for all of our devices. American Express has confirmed that the charges have gone through. We were sent emails regarding 3 of our 4 phones after 48 hours. One email said that there was an upgraded made within 14 days. Not True. Another phone said that it was out of contract and didn't need to be unlocked. Not True... but not complaining. Another phone said that it was under contract still and payments were outstanding. Not True. I have called customer service, and they are not able to tell me why our phones have not been unlocked. They told me to speak to a manager in the ATT Store in Aliso Viejo. They tried to help and then finally said that they were not allowed to help me. I cannot get through to anyone that can help me. I have been re-routed to sales multiple times and have been hung up on. (Please know that I said nothing to warrant that kind of treatment. I believe that they were equally frustrated and just gave up.) I also was told that a manager in the Mobility Department would call me within one to two hours. It never happened. It just seems that AT&T is too big, for any reasonable customer service. It has now been over 72 hours. What am I to do?