@Steve941
Just a shot in the dark here Steve. I notice you have 1 guest review and I don't know how much experience you have using the Airbnb app!
When you get an Airbnb sms message alert, that is all it will be.....and alert! It will come from a generic Airbnb number from which you can't respond to. To be able to respond you need to log on through the ABB phone app and go to your message stream associated with your profile and it is from there that you respond.
Another thing you will notice Steve, when that sms message comes in it will be broken if it's more than a six or seven words.....it will be an incomplete message.
Which ever way it goes you cannot respond directly to an Airbnb SMS alert.
Cheers......Rob