ERC Debt Collection Complaint

ERC Debt collection department,

Other (i.e. phone, health club, etc.) Cont'd attempts collect debt not owed Debt was paid Maryland

I had a balance from - and received a settlement letter. I paid the balance due to settle and now Enhanced Recovery has no documentation of the payment 1 year later and will not remove the balance from my credit report. I have called several times and tried to dispute but no results. I was told by the agency that the debt would be removed and that I will receive a proof of payment. I have not received any thing at this point.