Demon deals are perfectly ordinary. Sure they’re a terrible idea, but an ordinary one. And despite the fact that they’re illegal, and despite the fact that demons aren’t trustworthy, and despite the fact that making a deal will guarantee you a spot in hell, people are constantly making them. And, in the especially stupid cases, breaking them. People think they can get away with it by moving away, either to a Haven or a big city, as if hiding behind a barrier or getting lost in a crowd could actually stop a demon. Slow them down a bit maybe, but never stop them, not when they had humans to act as debt collectors.