I thought I had already posted this but twice now my guest has brought a friend home in the middle of the night to stay with me without my knowing. So furious and disrespectful - how do I deal with this? Thank you!
If your listing says no guests allowed, ask them to leave. Call AirBNB and keep them apprised of the situation, but there's nothing they'll do for you beyond that. It's your property, you have to handle the unwanted guest. Good luck!