A recent guest keeps asking how and when he will be refunded his security deposit money. Can anyone help? As I've not had this issue before, assume it is refunded automatically, but he left two and half weeks ago...
You should message the guest to contact Airbnb if they have a question about payments.
There should be contact details on the booking confirmation message that they received.
All financial arrangements are between the guest and Airbnb.
The guest is not charged the security deposit when they book. They are charged only for the accommodation.
Airbnb may put an authorisation for the amount on the guest's card. If so this is automatically removed if the host doesn't make a claim within 14 days of checkout or before the next guest checks in, whichever is sooner.
Airbnb put a hold on the money on the security card. They don't actually take it out, only if the host makes a claim. Just like when you rent a room the hotel takes a print of your card or when you rent anything. No money has been taken. Make sure this is not a scam. Maybe Airbnb are just slow in releasing the hold over their card. Has nothing to do with you. Send them to Airbnb.