A:Answer Their FAQ says the following:
Q: When will I be charged?
A: You will not be charged at the time you place the pre-order. Only when your item ships will your credit card be charged. If you order additional items along with your pre-order, you will be charged for each item as it ships.
Their email confirmation of the order says the following:
• Your credit or debit card will be charged when the item is ready for pickup or shipped
However, I can say for the pre-order I made, the charge has posted to my credit card already. I was charged immediately for the pre-order and I will be watching out just in case for a duplicate charge for the order.