Usually there are 5% items out of stock. Dresslink will contact you for the out-of-stock items in 1-2 days since payment received, and you can make replacement, or just ask Dresslink to send out the ready items. Dresslink will recalculate the item prices and shipping fee. All excess payment would be credited to your balance account for later use. If you want, Dresslink can also refund to your Paypal account.