Inaccurate payment profile

These people say it takes the 7 to 21 days to resolve disputes which is a lie i provided all information from service provider letter that account is paid up but no they not updating nothing. Customers are not protected i dont understand if a company is saying im not owing but they beraux is refusing to do the right thing. Im tired as a consumer who has been ignored for so long the dispute was submitted in March 10th. What do they want i sent letter from the company still nothing is happening