I can provide some information about the connection with PayPal, iharkins.

The level of detail we receive depends on PayPal. However, our Engineering team has determined several issues with the connection in QuickBooks Online (QBO). 

They've determined that several merchants are set up incorrectly. Having the PayPal app pointing to an old/incorrect Account_ID inside their QBO can cause the system not to receive transactions from the app.

I recommend contacting our QuickBooks Team so they can identify if your PayPal account is active in the system. Once they verify the status, they'll provide the necessary steps to keep this going.

While the refund isn't showing up on your Banking page, you can manually record the transaction. It will keep your books accurate. This process depends on how you process the refund. 

Check out the Record a customer refund in QuickBooks Online on how to record it in the system.

Stay in touch if you need anything else, and I'm always around to help.