How to use online coupons?

yinyang official LINE page

How to use coupons

After adding the product to your cart in the online shop, proceed to checkout and enter the coupon code in the discount box.
After you fill out the form, the coupon discounts will be applied.

*Please check to see if the discount has been applied before placing your order.
*Please make sure there are no errors when entering half-width or full-width characters, spaces, etc.
* Any input in the remarks field will be invalid.
*After you have completed your order, we will not be able to respond to any inquiries you may have if you have forgotten to enter information.
*Coupons cannot be reissued.
*Cannot be used in conjunction with other coupons.