This is what I got from their website:If the price drops before the release date, you will be charged the lower price,your credit card will be charged only when your order is processed. In some cases, we will process your order and authorize your credit card up to 10 days before the release of the product. This will allow us to get the product to you faster.Sometimes manufacturers will limit the amount of a product available, should this happen, we will process the online orders in the order in which they were received, from time to time, GameStop.com will offer a special promotional item with a pre-order. Due to limited availability, these items are only available while supplies last,Please note: An order cannot be cancelled once the pre-order item or code has been supplied.
Orders containing both pre-orders and in-stock merchandise will be broken into separate shipping groups. Each group will be shipped as soon as the merchandise becomes available. Handling charges will apply to each shipping group independently.
In an effort to ship pre-orders as quickly as possible, sometimes we use external resources to "drop ship" merchandise to you directly from the source. This eliminates the time it takes to ship product to our warehouse before shipping it to you. Due to the tight time constraints, some orders will not make it into our drop ship process. Those orders are shipped directly from our warehouse, usually on the following business day.
Some of the order types that will typically miss our drop ship process are:
Pre-orders placed too close to the release date. Cut-off dates are normally three or four days in advance of the ship date.
P.O. Box, APO/FPO, and Value shipping.
Pre-orders that fail our credit authorization process.
GameStop.com works tirelessly with game publishers to ensure accurate release dates on our site. Occasionally, publishers run into problems during the production of a game and the release date must be changed. Sometimes dates move forward; more often they move back, and frequently they get changed more than once.
If a game is scheduled for release far in the future, the vendor may not even give us a date. In those cases we rely on the collective wisdom of our buying staff to estimate a date based on their knowledge of the industry and the vendor's history.
We guarantee that we will always post the best release date information available at the time of our posting. We know that you want that hot new game yesterday, and we want to be the company that gets it to you quicker than anyone else.
Hope this helps.