this is a debt for an apartment that I signed for my son, o explained to this company. this account was a pay to delete agreement. I paid XXXX dollars to this company for this debt that I did not incurred but I signed for my son to live there so I was held liable. once I pay the debt to National credit systems I received a letter stating the account was paid, so I immediately thought the process to delete this from my account would follow. from XX/XX/XXXX until XXXX XXXX I know this account should have been adjusted. so I wrote them a good will letter and explained what was agreed upon payment and that I kept up end of the deal and they did not. I want this account deleted from my credit file all XXXX as I was paid and agreed upon. I faxed and mailed letter to this company and no response or removal of this account from my credit file. They are holding my credit file hostage with his derogatory information that was suppose to be deleted years ago. I want his account removed asap from my credit file.