I'm here to make sure you can connect your Chase card successfully, @userjovi.
Deleting the bank from the Chart of Accounts doesn't disconnect it from the bank feeds. It only removes the account from the Banking page but remains connected in the background. However, this will appear as not connected to QBO. I recommend contacting your Bank. From there, they can help disconnect your QBO. Once done, you can reconnect your bank to the program.
Here's how:
Go to the Banking menu or Transactions menu.
Select Connect Account on the landing page, or select Add account or Link account if you've already created an account.
Search for your bank. You can connect most banks, even small credit unions.
Select Continue. Then enter the username and password you use for your bank's website in the pop-up window. It may take a few minutes to connect. You'll see onscreen instructions if your bank requires additional security steps.
Select the accounts you want to connect (savings, current, or credit card) to QuickBooks. You should see all of your accounts tied to your financial institution and can connect as many as you need.