Hello,
I am a new host based out of Houston.
I am not an expert, but I had a similar encounter where a payment was sent to a different account.
My advise would be is to contact the bank institution where you closed the account. It is likely that the bank may have rejected it or the money was sent back to the sender.
Or, you can also contact the Airbnb, maybe your funds are just sitting there unnoticed.
Just my two cents.
Hopefully you find some resolution. And, good luck.
Yours truly,
Jasmine