@Ishmael0 There's nothing for you to do since it will be Airbnb who will process the refund. Airbnb processes refunds almost immediately but it can take several business days (5 -7) for the guest's bank to process the refund. Your guest can always contact Airbnb to see if they have released the refund. I would suggest that they also check the financial institution that she used to pay for the reservation.