Debt Recovery Solutions, LLC Debt Collection Complaint

Debt Recovery Solutions, LLC Debt collection department,

Other (i.e. phone, health club, etc.) Cont'd attempts collect debt not owed Debt is not mine Rhode Island

- cable/phone/internet had a billing error for - form -/-/2013. When I pulled credit report I noticed contacted - and they removed from all Credit Reporting agencies and stated billing error on their side. I checked the reports and all entries were removed. Several months later I received a letter from Collection : Debt Recovery Solutions for the same amount. I explained the background and faxed them the receipt of the return equipment to -. The rep advised ( - ) they would remove the account from their files. This week notices the Collections has been placed on my Credit report. I called - and they could find NO records of any Past due, Collections under my name or any address. How can Debt Recovery Solutions report a debt that - states I have none and I sent them proof of 2013 return of equipment