@Layton71 If you have been trying to book through the phone app, try instead on a computer. That can sometimes solve problems users are experiencing. And Chrome browser works best for Airbnb.
As far as poor customer service, yes, that's a problem for many guests and hosts alike. Contacting them through Twitter is said to get the best results. If you are phoning and they say they'll get back to you, they seldom do. About all you can do is keep phoning back in the hopes that you'll get a better customer service rep the next time.