RJM Acquisition for Fingerhut ripoff. Account paid in full 6 years ago. Now shows up on Credit Report. Hauppauge New York

I received a copy of my credit report a month ago only to find an old Fingerhut account has resurfaced through RJM Acquisitions collection agency. This account was paid off 6 years ago and I've even had a new Fingerhut account since then.

If they think they'll get another penny out of me, they have another thing coming. So I called RJM and asked for proof of this balance. They read me something from an address over 10 years ago and asked me if I had proof I paid it off. I'm not the one to use profanity but I wanted to "rip out his eyes and spit down his dead skull" (Jack Nicholson in A Few Good Men. But I refuse to sink to their level. So I will go dig in my basement for proof and when I find it they're gonna be some sorry s****.> R
stamford, Connecticut
U.S.A.