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