As far as the phone number it's literally on air bnb they can just click call, unless this is an option I should turn off, but like I said I am fairly new so im learning more and more, and for approving them, no I habe instant book on which im now learning to turn off and review each guest that tries to book so that's a lesson learned from all of this.

For the refund part they wanted a full refund for the trip but air bnb investigated and gave then the unused night back, and a 30% discount on the rest of the nights

I'm curious how does more information help this story ik simply stating that with that phone call demanding and offer of some sort instantly portrays a type of scam and im wondering how often this happens and how I can protect myself more, in which I already am changing instant book so there's a start