XXXX submitted debt that I did not owe to Credit Mangement XXXX. I have repeatedly talked to XXXX, who have told me that I do not owe the money trying to be collected, but they have thusfar been unable to send me any paperwork or billing statements in writing saying that I do not owe this money. I was told via a XXXX Rep that the debt they incorrectly assigned to me was cancelled, and I should not receive any additional calls from this credit management service. This was not the case, and I was told today, XXXX/XXXX/15 by Credit Management XXXX that I need to pay the bill immediately or it will be reported on my credit. XXXX has again stated that I do not owe this money, and that the issue should be taken care of. I still have no written proof at this time, though I am awaiting an email from XXXX, sending a proof of billing.