I pulled my credit report during the last quarter of XX/XX/XXXX and noticed a collection in the amount of {$200.00} from Enhanced Recovery Company ( ERC XXXX. I was never contacted about this debt. I called and spoke to a representative at ERC who informed me that the collection was due to an old XXXX account I had closed back in XX/XX/XXXX and that they could not provide me with any additional details. When I told the representative that this was a prepaid account, I was told that I would have to contact T-Mobile for additional information about my account and to request that they make a request to have the debt removed. I called XXXX and spoke to a representative who confirmed that my plan was prepaid ( Flex Pay ) ; however, they could not remove the collection once it was out of their hands ( the collection agency had to ). They refused to assist with removing the collection account even after I told them I had never received any phone calls notifying me of this fee. I have been calling XXXX and the collection agency for months with nothing being resolved. I also mailed the collection agency a request to prove that it is a valid debt and to prove that the cancellation of a prepaid account is valid. I have received no response.