I also recently lost $3050 to Airbnb and a terrible host in London. The listing was wrong (including the address), but both Airbnb and the host didn't want to refund my long term stay and dragged it to force me to stay. I am still fighting it through my bank to no avail :(
$3050 is a large enough amount that I would take it to small claims court. In which case, AirBNB has to send a representative to court to fight the charges, or they'll default and you'll (eventually) get your money back.
Even if they do send somebody (which is doubtful) what you're saying suggests that the listing was totally fraudulent.
