I recently got a new MAcbook pro, and while I was exploring features on the Apple site and learning to make the transition to a Mac from a PC, I noticed there was an up-to-date program. I do not have any receipts or the papers from the shipping to prove when I bought my mac and they denied my first attempt. I would like to get the new software, but i need to know if there is any certificate installed to help me prove I bought my mac.
If you bought your Mac on-line directly from Apple, then your name, date of purchase and serial number of your Mac are enough.
It worked fine to upgrade my new MacBook Air (bought on apple.fr) to Mountain Lion.
Without receipts there is no way to get your mountain lion upgrade for free:
To receive your OS X Mountain Lion upgrade, you must complete the order form and provide an electronic copy 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.
Quoted from the apple website: osx up to date
If you bought it online, Apple should have emailed you a receipt after your purchase. If you got it direct from an Apple Store, I think all you need is the serial number of your machine, which can be found under
About This Mac>
Hope this helps!