Hi there, I have a 13" Macbook air. Purchased a year ago tomorrow. I wish to extend the AppleCare. I guess I stupidly assumed you could just enter your serial online and pay and it would extend it, but it seems you have to order this physical package and have it delivered etc. and I assume, go through some process to do it, which obviously I don't really have time for. Can anybody explain to me the AppleCare extension process, and if I have any options. I have a Window tomorrow (exactly 1 year) of about an hour when I can get to an Apple store, if it somehow helps to do it instore..