Buyer opened a "Return for Replacement" request which automatically generated a free replacement order through Amazon's return system. The replacement shipped out and was delivered. 2 weeks later the buyer opens a A to Z saying they "returned the order and still hadn't received their refund". I showed that the buyer had already received their replacement order, but Amazon still granted the refund and counted it against our ODR. Appeals have been denied saying the "Order was returned and should have been refunded".