Hello, Susan. 

I'd like to shed some more light on managing downloaded bank transactions in QuickBooks Desktop. 

QuickBooks Desktop doesn't have the Undo button feature, like in the Online version. 

I see that you've already deleted and created a manual payment for the bill. This is actually the only way to remove the incorrectly added transaction from your register. 

However, the downloaded transaction will be completely deleted from the Bank Feeds. It won't appear under the Unrecognized tab.

So, you would want to disregard the Bank Feeds process for this transaction only and continue in recording the bill payment manually. 

Regarding the auto-matched transactions, you would still have a chance to correct them. In the Desktop version,  auto-matched transactions will show up under the Recognized tab. 

To un-match them, click the arrow icon under the ACTION column, then select Not a match. 

This article might also come in handy if you need some references about the Bank Feeds functions: Add and match Bank Feed transactions in QuickBooks Desktop.

If you're ready to reconcile your bank, feel free to use this article as a guide: Reconcile an account in QuickBooks Desktop.

Do you have more questions about your bank transactions? Or would you like to record other entries or manage reports? Please let me know and I'll gladly lay some details for you.