Sprint Sprint wireless Buy out program Carol Stream IL Nationwide

I have been dealing with Sprint on a buy out program. They promised that after we returned to phone's that they would send visa gift cards to pay off old bill and buy out the contract. So now the bill is in the 1,000s and they send up to this place the n to another. Have spent to much time and gas on this issue. I have talked to many different people that Sprint has done this to them. Something needs to be done to stop what they are doing to people. I also had to get the old bills and mail them to them and nothing was done. Never received the gift cards. This is now one mu credit report and they are calling me all the time. Why should my credit get destroyed because of Sprint. I'm locked into a contract with Sprint so stuck with them.