예구했을 때 왔던 구매확인 메일에 이렇게 있음
Thank you for shopping with us. This email confirms your pre-order. You will not be charged until your item is released. * We will send an Order Confirmation email when we charge your payment method on the day your item becomes available, and a separate Digital Delivery Confirmation email when the item is available with instructions on how to access the item. 

출시 당일에야 결제되는 듯? 예구특전만 따로 보내주는거고