Coupon Rules:Customers cannot receive a referral discount and a mutli-student discount. They can use the referral discount on the first student, but it will not work if they enroll a subsequent student in the same school year.If a student receives a referral discount, they are not able to enter any other coupon codes.In certain situations, coupons can be stacked. Coupons are product specific. For example, a customer can use a coupon for a discount on a Total Care package and use another coupon for a discount on an adRefer to the image below for how coupons work in certain scenarios: