Online shops often require customers to pay for returns because processing returns can be costly for the retailer. When a customer makes a return, the retailer has to inspect the item to make sure it’s in good condition, and then may have to repackage it for resale or dispose of it if it’s no longer in sellable condition. Additionally, there may be shipping and handling costs associated with the return, including the cost of sending the item back to the retailer and the cost of restocking or reselling the item.