Thank you for joining the thread, Raeh60.

I'm here to help you with your banking concern in QuickBooks Online.

Yes, you can delete those transactions if its duplicate or no longer needed.

I want to make sure that I'm able to get you both back to running your business. To give you the best solution, what bank is having the update issues within the Banking tab?

For the time being, you can perform some basic troubleshooting to isolate and fix the issue. Let me provide you the steps.

Here's how:

1. On the left navigation bar, click the Banking menu or Transactions menu.
2. Go to the Banking tab.
3. Select Update. 
4. If there's an error code or message after the update, please follow the instructions in this link, here's what to do if you get an error or can't download transactions.

With regards to excluding your transactions from the Banking menu, you can follow these steps.

1. Go to the Banking menu, then select the Banking tab.
2. Select the For Review tab.
3. Select the checkbox of the transactions to exclude.
4. Select Exclude.

For your future reference, you can check out this article: Categorize and match online bank transactions in QuickBooks Online

Please let us know if you need further assistance with using bank feeds. The Community and I will be here to help you.