Hello @Rob-and-Alex0,
Once you've set up two or more payout methods and they each have the status "Ready" you should be able to use routing rules to split payouts for different listings to different accounts.
The article at the link below describes the process.
Can I split my payout between different payout methods?
One thing to bear in mind is what can happen if you refund a guest and Airbnb deducts it from your next payout.
If you refund a guest who stayed in listing A and your next payout is for a stay in listing B then the deduction will be from the payout to that account rather than from the account for listing A.
If you've already tried the above and it didn't work then you'll hve to contact support.
Click on "Help" and then on "Visit the Help Centre" and then on "Contact us" on the left to see a page with phone and message links for them.
Steve.