Just a follow up in case anyone has to deal with the same thing. Airbnb did get back to me after 4 days. I did end up getting a refund. They offered me a discount to find something else but after 4 days I had already booked something else so it didn't help. I really hope Airbnb actually starts dealing with these situations when they happen. 4 days later when you are stuck in another country is really not acceptable, but I appreciate them at least recovering my money from the host.