@Lee379
Request from Airbnb a copy of any and all bank details they have had on file for you since you first opened your account.
Additionally, inform Airbnb that you require that they send you a copy of all documents relating to any previous attempts to send your payouts to you, to include source and destination details, payment reference number, disbursement reference number, originator reference number, WL reference number, beneficiary account number, beneficiary bank name and address, beneficiary bank routing code, payment method, alternate reference number, internal payment method, post-release information and reason for return/refusal.
It doesn't matter one bit if you're not familiar with all those terms - you don't need to be. What matters is that they send you those documents - which they're obliged to do - as they'll be invaluable for you to have in hand, should Airbnb keep messing you about and you need to take this further.
Send the request for all the information that I outlined above ASAP. That should focus their attention and hopefully, get things moving forward a little quicker for you.
Penelope