Hi! So like many I woke up early Friday morning to preorder an iPhone 6 Plus. I got in fine and it is supposed to be delivered by 9/19. I am starting to really regret getting the smaller storage amount, 16GB, and now really want to switch it to the 64GB. Any suggestions on how I could do this? I know Apple has a 14 day return policy but I am sure they will still be sold out of the iPhone 6 Plus 64 GB for ATT. Any suggestions in appreciated!