You will only be charged when your pre-ordered item is ready to be shipped. If placing an order for both in-stock and pre-order items, you will be shown a breakdown during checkout clearly indicating what is due to be paid immediately (for the in-stock items) and what will be due later (for the pre-order items) once they are ready to be shipped. Please ensure you have sufficient funds in your account at the time the pre-order items are due to arrive, otherwise we may not be able to ship your order.