1.In you shopping cart page ,you can see:

2. After  you click "Update" button,you can see:

3.When you can see that "coupon use" is changed,then coupon code is used.

4: We only offer coupon code to wholesale order,over 6 pairs,and you can get 5% discount,also,if use west union as payment for big order,we can offer 10% discount.