<prompt> Human: I received a letter from Convergent stating I owe a debt and must reponddispute in 30 days or they assume it is valid. I do not owe this debt so I responded with a certified letter and regular letter disputing the debt. They received the ceritified letter. Two weeks later Convergent mails me stating they are not handling the account any longer. One week later Jefferson Capital Systems LLC sends me a letter stating I owe a debt of the same sum and that I have 30 days to respond or they assume it is valid.Do I have to keep responding to letters such as these regarding a debt I do not owe? Im concerned that my credit can be temporarily affected and require me to dispute it or take legal action causing me unecessary spending.  <response>: You will have to continue responding every time they transfer the debt, yes. Eventually they may give up, but it will probably take quite a while. 