2, the correct purchase channel, can not buy casually, to choose the price, some duty-free shops are good. It's just that sometimes these places will limit the quantity, and if you send it by single person, there will be a quantity limit.
3. Choose several good authentic Korean shops. In fact, many genuine stores are willing to cooperate with purchasing people. Although not selling the money in the store, many businesses prefer small profits but quick turnover.
4. It is your logistics ability. From the moment you receive the order, you have to go there to purchase goods, go through customs and post them. These times must be fast, because many people don't like to wait for a long time to receive the goods.
It is necessary to have a receipt when you buy something. Because it is necessary to prove that it was bought locally in Korea, not domestically, so that others will believe it.