taxi at night Korea Incheon Airport late night transportation VAT refund Korea tourist entry denial korea Incheon Airport to Seoul korea connectivity airport transportation Korea 서울 쇼핑 환급 korea sim card korea mobile internet night transportation Korea k-eta korea korea travel tips Korea tax refund AREX Korea taxi Incheon Airport 공항 환급 방법 Myeongdong tax kiosk visa-free Korea overstay Korea travel Korea airport bus Seoul tourist visa rules korea illegal work tourist korea immigration risk Korea tourist visa esim korea tourist overstay Korea consequences Incheon Airport to Seoul after midnight 한국 세금 환급 immigration overstay decision Korea korea tourism guide Tax refund in Korea visa violation travel korea Korea travel guide overstay exit risk Korea tourist exit record Korea tourist rules Korea visa free korea hospital visit tourist Korea late night bus Korea 외국인 택스 리펀 tourist exit procedures Korea missed last subway Korea tourist medical emergency Korea late arrival Seoul Korea night bus airport overstay clearance Korea korea entry requirements travel to korea