Return customers are treated with Customer Rewards coupons. All customers that have repeat business with Mixasoil, receive discounts. All you need to do is email us for a confirmation code for your special rewards coupon. Then simply apply the coupon code with your order and we will apply the discount. If you would rather we can also just send you a coupon code upon email request. Just include your name, previous order, and email address for your special coupon code.