I bought a macbook pro a few weeks ago and I pre-ordered Snow Leopard last week for $10 through apple.com. I bought the macbook pro in-store here in vegas so I used the in-store form to fill out my snow leopard purchase. It asked for my date of purchase, place of purchase, and serial number. So it's been over a week and my credit card has yet to be charged the $10 + tax. I was wondering if that's normal. Do they charge until the product comes out next month? Has anyone else not been charged yet? Also, even though the online form i filled out asked me for my macbook pro's serial# and stuff, do i still need to send a proof of purchase? or is proof of purchase only for those sending the form through fax or mail? i was thinking that maybe they haven't charged my card yet was because i haven't provided them with a proof of purchase. thanks 
