Simply input the promo code upon check out at the coupon code area under “Shopping Cart” and click “Apply”. If the promo code is valid, the discount would be reflected instantly. Do note that certain promo codes are available for a specified promotional period. Promo code must be entered upon purchase to be valid. Discount cannot be applied on an order (if order is successfully made) if promo code is not entered and applied in the coupon code area upon purchase. Do note that promo code are only applicable to non-discounted items in our e-store.