Bank key doesn't exist

I am trying to fill in my banking details under "Agreements, Tax, and Banking" -> "Add Bank Account" in "App store Connect".

I fill in all the details and get the error message "bank key doesn't exist". But none of the fields turn red as they do when the information in them are wrongly formated. I have tried to connect the support but havn't heard back from them in five days. A search on google and here also seem to provide no information.

Any ideas what this error message means?
Not sure if it's related, but my payment was returned today for going to a bank I've never banked with or set up in App Store connect. Sounds like maybe they're having an issue with processing bank information.
I'm having the same problem. @SecondTech, have you solved this issue.
Regards

I am having the exact same issue , but couldn't get a prompt reply form Apple yet, how you solved it?

so what is Bank key?

Bank key doesn't exist
 
 
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