During the checkout process, go to your shopping bag and see the "Promotion Code" box. Enter the full promotion code and click "Apply".
-You can only use one coupon code per order.
-A coupon can only be used on the product value. They cannot be applied for shipping or insurance fees.
-Please note that discount coupon cannot be used on item which is already on sales or discounted in any way.
PS: Make sure your coupon has not expired.