Hey Gyan90,
Thanks for the detailed rundown— and legend for chucking in the screenshots, that makes things heaps easier to follow. The error "A bank feed is not associated. Click Manage Bank accounts and associate and account to the bank feed" mans there's a bank feed that hasn't been linked to an account under Manage Bank Accounts. From what you've shown on the screenshots, everything looks to be lined up just right on your end. Since the setup's looking sweet but the error's still popping up, it's best to contact our support team directly on Live Chat via our virtual assistant, MOCA, so they'll be able to spot what's tripping things up.
Cheers,
Doreen