Hi there, flowers-botanica.
Thanks for reaching out and letting us know about your experience with the online banking feature in QuickBooks Online (QBO).
I want to ensure this gets resolved. But before doing so, I'd like to verify the name of the bank account you're trying to update. And may I know the exact error message that you encounter? Any additional information will get us closer to the resolution and check if there's an open investigation about this.
We're looking forward to hearing from you. Have a great day!