为什么自己不会去amazon看return policy？
"Do I need to refund shipping just to avoid negative feedback?"
Can I charge a restocking fee?
Buyers may be charged a restocking fee that depends on the type of item and
condition in which it is returned. You may charge a restocking fee as
follows:
Up to 20% of the item's price for unopened media or non-media items in
their original condition returned more than 30 days after delivery
Up to 50% of the item's price for items that are not in their original
condition, or are damaged or missing parts for reasons other than seller’s
error
Up to 50% of the item's price for books with obvious signs of use; CDs,
DVDs, VHS tapes, software, video games, cassette tapes, or vinyl records
that have been opened (taken out of the plastic wrap)
