Airbnb confirmed that this happened.
I asked for refund immediately.
Airbnb waited 7 fucking days. They claimed they wanted host to correct the situation. I told Airbnb I didn't want to wait for that as I don't trust the host anymore.
Fortunate for me that the host didn't reply to Airbnb.
The whole thing is just anti-consumer. Host changing details should grant me the right to cancel with full refund immediately.
I was very disappointed at the ethical standard at Airbnb.
I hope Airbnb fails. I can't support them anymore.