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