How to refund the tax when shopping in Jeju Island, Seoul?

First of all, ask for a global tax refund check when you buy something.

Secondly, you pack the baggage that needs to be refunded separately, and then tell the service staff that it is a product that needs to be refunded when you register. Confirm the luggage and stamp it at the customs.

Finally, the customs staff will tell you which window you need to go to for tax refund. The tax refund window of each airport is different, subject to the arrangement of the local customs.