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