Hi Steve , Its obvious that there is a glitch somewhere. ABNB should review. No where in the USA we pay 43% tax on anything . Once the phone company charged me $800 .oo for my bill . i went through many agents for one month tirelessly , until one smart lady found out that my bill was coded wrongly for residential billing . She then adjust my bill and remove the charges.
Maybe there is a wrong code that was placed on your tax portion and no one seems to figure it out.
just have them do a detailed search for the wrong code.