This is a scam. They overbook then try to get you to cancel so they can keep your money and you cannot review them.
Even though they sent messages to me they would never give me the door code. When I called from the airport, they replied by text, "that phone calls were not good." When I responded I was at the airport and "would be there in 30. What is the code?" There was no response.
When I got there. There was someone who had been waiting for an hour to check in, and was on the phone with airbnb while the host was inside. I tried again to contact host. Then someone appeared and gave me a water. Told me to wait and that they hated all this stress, then disappeared. 30 minutes after I contacted airbnb a host came around from the back of the house and took me back around to the back while another couple who were dropped off waited. The bed that was mine was in a HALLWAY next to a nonlocking sliding glass door, but I could use another guests bed until they checked in. WTF?!