It may be that they no longer own the debt, but have sold it to someone else.
It could also be on there by mistake.
The debt definitely isn't a mistake, I for sure didn't pay that bill. I actually did speak with someone like 6 weeks ago who confirmed the debt, I guess they could have sold it in that time frame. It's just frustrating. I HAVE MONEY AND WANT TO GIVE IT TO THEM LOL
Most of these debt collectors are operating on a shoestring budget so it's no surprise they are blowing you off. It sucks that the whole industry is set up to make it so hard on consumers who want to fix their reports.
Hopefully someone will get back to you soon. I'd keep trying. Good luck.