MrDrMcCoy parent
I use privacy.com proxy cards for this. Don't even bother unsubscribing most of the time, I just cancel the card and let nature run it's course :)
Legally, can't they let the subscription run and say you owe them the money?
I can say you owe me money too. The hard part is collecting said money. The overheads of collecting from a non-cooperative customer would not make it worthwhile.