I have contacted Portfolio Recovery Associates LLC on numerous occasions over the course of several years demanding they send me valid proof of the debt that it is mine, specifically by providing an application that bears my signature. They refuse to send anything except letters stating they will not provide anything to me. I then disputed with all credit bureaus. They did not provide any paperwork verifying the debt was mine but rather wrote a letter claiming the debt was valid. They are now refusing to communicate with me as they state I have not provided them with new information so they are under no obligation. It is obvious they do n't have any proof otherwise they would have sent it already.