It's nice to see you again, @Anonymous!
Let me join into this thread, share a few insights about your PayPal refund and help you from there.
To start with, let's review the amount of your refund transaction making sure that it is the same as the PayPal fees amount taken out from your bank.
Let me show you how:
In addition, here's an article you can read to learn more about customer refund: Record a Credit Memo or Refund in QuickBooks Desktop.
Lastly, feel free to visit our Help Articles page for QuickBooks Desktop if in case you need to learn some "How Do I" steps.
It'll be always my pleasure to help if you have any other questions. I'll be keeping an eye for your response.