I am getting ready to buy my retina MacBook Pro and read in a post on here that American Express offers a 1 year warranty extension on laptop purchases when you buy it with their credit card. I have an american express card and a couple apple store gift certificates. Does the AE (american express) warranty still activate/apply if I use my $200 worth of gift certificates and then use my AE card for the rest of the purchase? Also is the warranty activation automatic after the purchase or do I have to call AE to have them activate it or let them know that I bought the rmbp?