ERC Debt Collection Complaint

ERC Debt collection department,

Other (i.e. phone, health club, etc.) Disclosure verification of debt Right to dispute notice not received Wisconsin

I was in the process of trying to get a mortgage and when a new credit report was pulled an account from Enhanced Recovery was reporting. I had a representative contact them because time if so of the essence. I currently have - so I was surprised that they indicated they were collecting for -. I would have paid this had I gotten notified but never did. My representative asked for a number to reach - and was told they would not give the number. I have called several - number and have gotten nowhere. What worries me now is how do I know this is truly mine? Like I said I have - now and if they ca n't give me a phone number to contact the original company how can I know this is a valid account?