at&t uverse Empty Promises and Over charging Dallas texas

 i had Max uverse 12mbps plan for a year for $29.95, After i called to cancel service due to relocation was told that i can continue service with them and was offered to reduce the price to $24.95 for next 12 months and free service transfer to my new home. After a month i got a bill with Charge of $51.00 for Max 12mbps plan and $49.99 activation fee!! After i contacted them and explained was told that have to wait for them to file a case in a special department(cant remember the name) and they will get back to me and will be able to fix it. 3 months goes by and im keep getting charged $51.00 and each time that i call them telling me to wait. Finally canceled the service today after it got suspended since i refused to pay the last bill. DON"T trust any special offer on the phone, i even had order number and name of the agent that gave me the offer but couldn't do anything with it.