Please check if you are currently enjoying member's VIP discount.
If your VIP discount value is higher, the system will only read the higher rate.
Certain Discount codes and VIP discounts are not stackable (subjected to on-going promotion mechanics), it will take whichever discount value is higher
The Discount Code is only made valid during the campaign period and will not be made available thereafter.
Any repurchase due to return, the item can be purchased based on its current selling price or utilizing of available promo code at the time of purchase.