Unfair Treatment by Airbnb Over Honolulu Booking

On Jan. 3, we booked an apartment in Honolulu for five days and paid the requested 50% payment, 1451.45 NZD. When COVID arrived, we assessed the situation on this booking for May 13-18 but as the airline we had booked on was no longer flying, we cancelled the booking with the hostess on March 19 assuming we would get at least the 50% back — 725.70 NZD, as stated on the booking rules.

Sadly the host only refunded 43.39 NZD… why? There was no explanation at all. What I cannot understand is that she would not even refund the cleaning fees of 372.68 NZD as we had never been there. On top of all that, the service fee of 341.69 NZD will be a coupon waiting to be used. The CEO Brian Chesky also sent a letter to say that Airbnb would repay the hosts the full amount that they would lose, so why would the host not pay us back?