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