Credit report

I paid off my Edgards account in 2014 and still have the paid up letter and proof of all correspondence, however, last week i received word from another financial institution that my Credit record was bad due to Edgars still not updating that I paid off the account with the credit bureaus... Ive had this fight quite allot with Edgars and the response I'm going to get yet again (ITS NOT US ITS TRANSUNION) guys fix this please its very unprofessional especially from such a massive company.