@AnonymousThe first step would be communicating to the guest that their behaviour isn't acceptable. Even if you've done it in person, write them a message through Airbnb and remind them of the house rules and mention what the expectations are. If they are apologetic and remedy their behaviour, all may be well. If not, you have the issue documented and you can give Airbnb a call and explain that you don't want to continue to host the guest. The issue with going that route is that you may lose the payout for the unused days: I don't know how much that matters to you. Airbnb may also treat this as a cancellation and levy penalties accordingly.
The best thing to do is try and resolve it with the guest before you involve Airbnb.
Also, you may want to be a bit more specific with house rules. Your listing doesn't really have much about what's allowed. You may want to include a few more details. It sounds like your guest probably just isn't respectful, but having clearer rules will give you something to fall back on if you have problems.