Could someone give me a little guidance on this situation please, couldn't find a answer online where the basic delivery option is free rather than paid? I offer free 2nd Class Delivery on all my products. My customer bought a product and paid for the 1st Class Delivery option. My customer has returned the product as they no longer want it. Do I have to refund them the full order amount including the 1st Class Delivery, or just the price of the product?