To refund a transaction, open the order.
Click on the Edit button located in the top right corner.
To issue a refund, you must create a balance due.
Refunding some or all of the Products? Click into the Products section and delete out some or all of the items.
Changing ship method from ship to pickup? Edit the ship method to pickup and that will create a balance due.
Once you have made your changes click the Refund button. Then select the refund method and click Update Order.