This string field indicates the restocking fee percentage that the seller has set on the item. Sellers have the option of setting no restocking fee for an item, or they can set the percentage to 10, 15, or 20 percent. So, if the cost of the item was $100, and the restocking percentage was 20 percent, the buyer would be charged $20 to return that item, so instead of receiving a $100 refund, they would receive $80 due to the restocking fee.
An enumeration value that indicates the alternative methods for a full refund when an item is returned. This field is returned if the seller offers the buyer an item replacement or exchange instead of a monetary refund.
Code so that your app gracefully handles any future changes to this list.