You can choose what type of notifications you receive—and how you get them—in your Notifications. Options include: phone calls, texts, push notifications to your Airbnb app, or emails.
If the user's push notification is enabled and working, the notifications associated with reservation acceptance and message will skip SMS.
You can turn off most alerts in Notifications. You can also:
In some circumstances, like if we can’t reach you by email, we may need to contact you by phone or in some other way.
Airbnb's mailing address: 888 Brannan St., San Francisco, CA 94103