In this case, please contact us and provide your detailed information of the placed order as well as the products that you intend to order. If the amount of the new order is less than the amount of the initial order, we will send you the product that you aim to buy immediately and refund you the difference. Conversely, if the new order costs more, please transfer the difference to our PayPal account billing@magestore.com and inform us of your PayPal email address. Right after checking that your payment is complete, we will exchange the product for you.