Hi Simon T1, thanks for joining the Community.
To record a supplier refund to a credit card:
1. Select + New.
2. Select Credit card credit.
3. In the Payee field, select the appropriate supplier.
4. From the Bank/Credit account ▼ dropdown, select the credit card where you received the refund to.
5. Enter the Payment date, refund amount, Tax and Category. (Note: The category used here is the original expense account on the original bill.)
6. Select Save and close.
If you need any further help on this, get back to us below. :)