A quick google shows they are a debt collection agency. Did you have any unpaid bills that would have been sold to an outside agency?
Make sure you know the rules about how old of a debt they can collect on. Don't trust their records and don't promise anything over a phone conversation. Ask for any debt information to be sent to you by mail and seek legal advice if appropriate.
Afraid I don't know anything about the process to help.
Disclaimer: Not a tax professional. Information gathered from internet links. Anything dated in June 2019 was posted in prior years and is before the 2019 limits and changes.
