When you place an order, an authorization is put on your card for the amount of your order. Your credit card is not actually charged, however, until your items actually ship and tracking information is available. There is one exception to this. For items marked as a "Pre-Order," Revzilla will charge your card for the full amount of the order upon order confirmation. The reason for this is because with pre-orders that can last for 1-3 months or more, by the time the product is ready to ship the credit card information may no longer be valid. By charging up front this is no longer an issue and Revzilla can ship orders as soon as they come available. If a Pre-Order needs to be canceled prior to product shipment, Revzilla will issue a 100% credit to the credit card.