I posted a vanity about this a few months back and now I can’t find it. The same thing happened to me concerning Sprint. It is on my credit report and I don’t owe Sprint anything. I don’t have a clue as to how to get it off either.
My situation - long distance landline phone svc w/ Sprint - moved and continued svc to new address. Eventually chose another LD company and paid all bills to satisfaction.
8 years later, a past due notice at old addy from Sprint, didn’t have old number printed on bill, I didn’t remember it. Had to call Sprint Corporate to get routed to human being.
Sprint had installed software to bill customers $5/mo for privilege of svc. Software included old customers from wayback. 1st CSR I spoke with parrotted, “That’s what the computer says, you owe.” Took an old, experienced CSR to explain and delete debt.
Hope this helps, quitting time and I’m outta here. :o)
BTW: I went got got my yearly free copy of my creit report from Equifax and there's nothing on it about this - yet. My responding to them might trigger them reporting, but I have not paid anything, nor have I indicated that I'd pay anything. The reps "Supervisor" said he'd halve my bill, LOL. That sent up red flags right away, at which point I asked what the original amount was. He didn't know, saying that they didn't have the records handy or sumsuch BS.