Bought a white Air from the Apple Store, and I really wish I'd got a space grey one. Assuming they let me swap it (stock permitting), what's the procedure? Do I need a genius appointment (I'm assuming not) and just take it in all boxed up? It's a 128gb that's virtually full, so ideally I want to take it in and then, when I'm deffo allowed the swap, disable Find My iPhone and erase everything in the store. Saves me having to restore it all if, for some reason, they won't sanction the swap.