I don't expect you would be able to help much on this, as I talked Airbnb support team, I had my host refund on two days of my 4 days trip, however, Airbnb team refuses to refund that refund associated tax charges which is ridiculous, since government would never charge on something not spent, so the excessive tax charges eventually will fall in Airbnb's pocket if not refund to customer, I strongly challenge this ridiculous Airbnb policy, I demand to have higher level person in charge to review and respond to me if you can help me with that.
Thanks