So so sorry @Johnnie6! I know how upset you must be. This is very stressful. I've had great luck contacting Airbnb via twitter help desk. I send a private message & they get back to me within a few minutes.
Airbnb will require you to contact each guest and cancel the reservations so the guests have time to find alternate reservations. Then contact them and they will usually remove penatlies if you can prove that what you stated above is accurate. Just send them the cease and desist letter.
David
Superhost Ambassador ~ Host Club Community Leader ~ Experienced Co-Host