1. Go to the "Front Desk" module.
2. Select the guest's reservation from the list of arrivals or departures.
3. Click on the "Payments" tab.
4. Select the deposit payment from the list of transactions.
5. Click on the "Refund" button.
6. Enter the amount of the deposit refund.
7. Select a refund method.
8. Click on the "OK" button.
9. The deposit refund will be processed and the guest will be issued a refund slip.