Hello there, @FOlsen.
Allow me to share some information on why the credit card payment refund is showing negative and help you from there.
A Credit card account is a liability, when it shows up in the Chart of Accounts and the In QuickBooks section, it will display a positive amount when there has been money spent on the credit card, and a negative amount when the card has been overpaid.
In your case, it's just right that the credit card amount posted is negative.
To learn more on how to handle vendor refund and credits, see the articles below:
The above links provide detailed information with steps in recording vendor credit depends on how you record your purchases.
For future help, feel free to visit the Expenses and vendors page for more insights about managing your vendor transactions.
If I can be of any additional assistance, please don't hesitate to let me know. Have a good one.