If someone uses a giftcard at our store, what happens if they return the item or need a refund?

If  a gift is returned to the merchant, it is up to the merchant’s return/exchange policy as to how the return will be handled.  If the merchant agrees to refund the value of the gift, and the voucher is still valid (not yet expired), the amount may be credited back to the voucher for you to use again prior to the expiration date.