I've just received a message from a guest (arriving on 9th June) to say that her mum's purse was stolen so she now has new card details and the card she used to make the booking will no longer work. I assumed she would have paid at the time of booking but can you confirm this?
Some reservations can be paided in two installments (50% at time of booking, 50% about 4-6 weeks before check-in). So if the guest still has to pay a second part, she must contact Airbnb about the issue.
It is in your interest for the booking guest to have a current credit card on file with Air BNB. Not only will there be a delay in a split payment, but if there is a damage claim, there will be problems with collection from the security deposit. Also should there be any change to the reservation, it will complicate payment.
Perhaps if you contact Air BNB to advise of the issue and you urge the guest to contact Air BNB you will avoid payment issues in June.