Originally Posted by
lewisc
The "official" policy is satisfaction guarantee means you're entitled to get a refund, and can purchase a replacement bag. It says as much on the box of older bags (that came with boxes). People who kept the receipt will get a refund equal to the purchase price. Customers without a receipt will get the lowest price the bag ever sold for.
I've returned items without a receipt and gotten the purchase price refund since Costco could look up the purchase on my membership history. So as long as you return something you bought with your membership number, you should be fine if you lose the receipt.