from the Apple website: "To receive your Mac OS X v10.6 Snow Leopard upgrade, you must complete the order form and provide a photocopy of a dated, itemized sales receipt indicating the marketing part number(s) of the qualifying product(s) purchased. Order acknowledgments, packing slips, and purchase order copies are not valid." I still have the box that my MacBook Pro came in and it lists information of my mac on the box. Apple should just make it easy and have a "User History" on their website, so that you can look up your purchases and get your receipt from there. Or is there a way I can do that?