Complaint Review: AT&T

While I was in another state, I called home twice using a cell phone (charged the call to the cell phone). When I got my residential phone bill, AT&T had charged me $26.48 for calling collect from a pay phone. I called them and explained that the call was made from a cell phone, and not a pay phone, and also that it wasn't a collect call, I called direct.

I talked to a guy named Shawn, a representative for AT&T, and he told me that he couldn't even find the charges for either of the calls. I asked him why I was being charged for the calls, and he said, "I don't know". I told him that I wanted a credit for the calls, and he said he couldn't credit me for the collect calls. I had already explained this to him once. I then asked to speak to his boss, and he refused. I feel that AT&T are cheeting people out of money, just like they are trying to do to me. How can AT&T charge for calls that they have no record of?????

David
Haleyville, Alabama
U.S.A.