Hello there, @jane-randolph.
Let me step in and assist you in disconnecting your bank account.
You can see the Edit Account info button once your click your bank pencil icon. You can follow these steps on how:
- Go to the Banking or Transactions tab.
- Select the bank you want to disconnect.
- Click the pencil icon in the upper right corner.
- Choose Edit account info.
- Put a checkmark in the Disconnect this account on save box.
- Hit the Save and Close button.
You can use these screenshots as your reference:
In case you need help connecting your bank account, you may refer to this article: Connect bank and credit card accounts to QuickBooks Online.
I've also added an article that helps you download your bank transactions manually: Manually download online bank transactions in QuickBooks Online.
If you have follow-up questions, please don't hesitate to leave a message in the comment section. I'll be happier to help. Take care, and have a great day.