My question involves collection proceedings in the State of: Tennessee

I just received notice from a collection agency stating that I owed money for a student debt from over 25 years ago. This debt was paid off but the bank where I had my checking account has been closed for years and I definitely don't keep records back that long.

When I asked for verification of the debt, they sent me a very bad, illegible copy that proves nothing.

What should I do. What are my rights. I really don't want to pay this off twice.