The booking was confirmed on Airbnb days in advance, but when I arrived at the desk, they had no record of my booking - telling me it must have failed and I would need to repurchase at a higher rate if I wanted to stay there. Fortunately Airbnb was able to refund my payment, but I had to spend 3 hours of my day dealing with this from the lobby, and spending more money to find a place to stay short notice.