Cellular One Lied about sales and misquoted service charged, then avoid me when confronted with problems! Rusk Texas

I was signing up for new service at the New store opening in Rusk with the manager. He made alot of great offers and guaranteed my service was not going to go over $160 a month! I had gotten buy one get one offers and more. A great deal that could not be beat, but was to help him get business drummed up for new location! When I got first bill I was that I was being charged for items that were supposed to be on sale and supposed to be free! I had to call and get him to go into the account and correct the bills himself. He reassured me that the service amount would go down as well. After getting the next bill I saw the amount had not gone down. I had contact him several times as I was told by the corporate office that he could adjust the amount due to reflect what he quoted me. After reaching out to him directly several times via text and call with always a response of I will get back with you shortly... never to hear back from him. He did not adjust the monthly bill to reflect the quoted price and he would not note the account for anyone else to make the changes for him. I was basically harrassing him on his cell phone and bussiness phone to get what I was quoted and was being blown off and got the run around from the stores and corporate office. So I quit paying, now they are on my credit for over $1,100 and say I signed a contract, NOTE THE CONTRACT DOES NOT SHOW ANY DOLLAR AMOUNTS EITHER!!!!