1. Please go to your 'Cart'

2. Please push a button of 'Order' 

3. You can see a little button of 'coupon' under each product name

4. Please push one button of 'coupon' - there are same buttons under each product name, but you don't need to push all of them!

5. When you see a pop-up, please check into a little circle in front of a coupon number.

6. Please push a button of 'apply coupon'

7. Now you can see the message that how much you get discounted.
8. Also you can't check the amount discounted at the payment page.