Go to "Customers --> Clients"
Search for client
Tap into "Payments Tab" or use actions sheet and select "Refund"
4. Tap into payment
5. Select "Refund Payment"
6. Select "Amount", "Reason" and any notes that may help you recall why you provided a refund and click "Refund Payment"
Refunds take 5-10 days to appear on a customer's statement. Credit card fees for the original payment won't be returned, but there are not additional fees for the refund.