In case you already have processed payment via online gateway with the Credit Card and now you need to process full/partial refund via online gateway you would need to follow these 3 simple steps:
  1. In the billing section you need move the transaction to “Unpaid Items” on the left hand side of the screen, so it will appear under “Payments” tab
  2. Go to the payments and under Credit Card deposits next to your transaction you will find “Cancel” button.
  3. By clicking on “cancel” button you will get to the refund screen, where you will have chance to process the refund in full (or partially by ticking box “Refund Partially”) and inserting the reason and desired amount to refund.