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