@Marion458
Assuming you haven't confronted the guest yet, if the guest hasn't yet written a review, I wouldn't even mention it until after they've written their review. A 1 star retaliatory review may easily cost you 300$ or more in the long run.
Otherwise, if you've already confronted the guest, then you're already in retaliatory review territory, so it won't really matter how much you ask for, you'll be lucky to get it anyway. But since the cat is already out of the bag, it's probably worth trying.
Good luck with that. Keep your cool. It's probably going to be frustrating.