We really want to be able to help you, but once you have submitted your order there is nothing we can do. If you have submitted your order, and still need to complete payment, you are in luck. Simply create another order, apply the coupon, and complete payment. We will see this and cancel your first order. For those that have already submitted payment, we can offer to reach out to you directly next time we are offering a promotion to make sure you are aware of it. For certain cases we can offer you a discount on your next order. Please submit a ticket and we will do our best to help you the next go around.