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