Amazon.com’s price for not-yet-released items sometimes changes between the time the item is listed for sale and the time it is released and shipped. Whenever you pre-order an item eligible for Pre-order Price Guarantee, the price we charge when we ship it to you will be the lowest price offered by Amazon.com between the time you placed your order and the end of the day of the release date. A pre-order price guarantee message will appear on your Order Summary during the checkout process. If you use 1-Click ordering, the pre-order price guarantee will be automatically applied. The order summary in Your Account will reflect the lowest price within 24-48 hours of the price change if your product has not yet shipped. After shipment, the difference between your order price and the lowest price by the end of the release date will be refunded to your account automatically, typically within 24-48 hours following the release date.