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