From their site:
The following cases you are not able to return your items are as below:
There is a little difference of the colour when we took pictures of our shoes indoor because of the light, so you are not able to return your shoes for this reason.
If the size and style you order are not suitable,we can exchange for you ,but you need to pay for the shipping fee and 30% depreciation charge.
Please keep your original items, your package and the dustbag well .You can return to us and we will change you (an) new pair(s) as soon as possible.
Please contact with our customer service to get delivery address if you want to change your items.
If you dislike the product after you get it, we are sorry that you are not able to return.
For hygiene reasons, if you have wore the shoes, you are not able to return them in any cases.
No way this site sells authentic merchandise. No legit store charges a 30% restocking fee. Stay away.