My medical insurance reversed a bunch of payments saying that I had other health insurance which wasn't the case. I notified XXXX, the original creditor what had happened and they were supposed to resubmit the claim to tricare for processing. They never did, even though I called XXXX XXXX billing department on 12 different occasions. Recently XXXX turned over the debt to Medicredit for collection. Rather than contacting me about the debt to be disputed they went and placed it on my credit report. 

I contacted medicredit to dispute the claim and they sent me back a letter saying that I was wrong and the debt was write which is a failure to validate the debt.