My iMac is my first mac i bought new so i have all the original documents. In the box were these Proof-of-Purchase coupons. They read: "to get Mac OS updates and other special offers from Apple, you'll need these coupons as proof that you purchased the Mac OS X software. Be sure to keep these coupons : you can't use copies." What am i supposed to do with these? Do i get a discount off of Apple software?