Hello @Rusty10,
To change it click on "Host" and then select"Listings" from the menu. Then click on your listing.
Then scroll down to the "Rooms and guests" section and click its "Edit" button. Then click in the "Property type" box and select the type that most closely describes your listing.
Then click on "Save".
For information on how to contact Airbnb support type "contact airbnb" in the "Search the community" box on these forum pages where you posted your question. Scroll down a little in the list of suggestions that appears and click on the "Contact Airbnb: A Community Help Guide[UPDATED]" one. That lists phone numbers and ways to contact them via Twitter or Facebook.
Steve.