We had a guest who booked a night, stayed at the house, left it a mess, cancelled at 6:00 a.m. the morning after they stayed, and then they filed a claim with AirBnb claiming that they hadn't stayed and wanted their $ back. AirBnb contacted me a week after the stay and it was the first time I'd heard about it (except I thought it really odd that I received notification that they were cancelling their visit after they had already spent the night.) Since they "cancelled," I am prevented from leaving a review on their profile! which protects them! But they threatened me that if I don't refund their $ in full, they will leave a 1 star review to retaliate. HOWEVER! Even if I DO refund their $ in full, nothing prevents them from retaliating with a 1 star review anyway! What a quandary!