When you pre-order an item from The Trend Boutique it is reserved exclusively for you and the order is placed with the manufacturer/designer. Your card is charged when the order is placed so your item can be put into production. If you need to exchange for a different size and we have stock we would be happy to make an exchange. Anything with a later ship date is considered a pre-order. Please note that we have no control over when a pre-ordered item arrives, but instead offer estimates. This is due to the designers' production schedules and sometimes an item may arrive several weeks before or after. Pre-orders cannot be canceled as a special order has been made exclusively for you with the designer which means your item is already in production and it has been paid for. If you have a pre-order item on your order all items will ship at once.