Our same or next business day shipping guarantee is exactly that, a guarantee. Our shipping department doesn’t hold orders for any period of time to wait for potential cancellations, so there is a good chance there may not be much time between your order being placed and shipped. If you do wish to cancel an order, feel free to can contact our customer service immediately and we will do our best to accommodate your request. If you order between the hours of 7:00AM-2:00PM CST M-F, you will not have a chance to cancel your order.