I have a comparable dispute with an old ISP from an old apartment. Their system had me as still receiving services there for many months after I cancelled and moved. Every year they send me a final warning saying it'll go to collections (the fact that it hasn't actually gone to collections more or less tells me I'm right, lol). Every year I'm grateful it's "just" an ISP and not the government because the government would've escalated the fine to a bajillion dollars and issued a bench warrant by now.

On the other hand, at least with a bench warrant you get to go to court and tell the judge "look, I cancelled this service years ago and I don't live there any more, and they confirmed the cancellation" and the judge would tell the opposing party to go cry about it.