Hello there, bjc31166.
I'd love to help you credit back a credit card transaction in QuickBooks Online (QBO).
If you're trying to credit a credit card back you can use the Credit Card Credit option. This is use when you receive a cash back on credit card or return something you purchased with your business credit card to offset the purchase.
Just in case you need help from a live technical support, feel free to reach out to our QuickBooks Care Support Team.
There you have it. Please know that I'm always here whenever you need help with QuickBooks or if you have more questions about credit card credits. I'd be happy to help.