Host confirmed the reservation in advance but did not communicate check-in instructions. When we arrived at the doorway at our check-in time, it was locked and we sat outside trying to contact the host. Host never responded to Airbnb messages but eventually responded to a WhatsApp message. As we sat outside waiting to enter, the host messaged us to say that he was no longer offering the unit.
We spent the morning sitting outside the unit working with Airbnb support to find somewhere else to go. The host had told us he'd had an emergency, but Airbnb support mentioned that he'd simply wanted to keep the room free for a family visit.
Airbnb support eventually helped us find a different stay, in a different place, with a different host, but it was a nightmare of a morning.