@Meg1162 There is a large pinned post on the first page of this Help Forum- "Contact Airbnb". It has phone numbers, you can also contact them through their Twitter account, and on the website, you go to the "Help" section, then follow the prompts and drop-down boxes until you get to a "contact us" message box.
There are apparently long wait times for responses right now, though, as they just laid off 1900 employees.