visa reporting timing Korea jobs in Korea for foreigners labor office Korea non-teaching jobs Korea company closed Korea visa foreign worker job change foreign worker ghosted Korea job change visa korea process foreign worker korea immigration reporting steps workplace change Korea KOTRA job fair fired in Korea visa employer shutdown foreign worker Korea foreigner jobs Seoul change job korea visa Korea job search guide quitting job Korea foreigner foreign employment law korea unpaid severance Korea Saramin work visa status foreign worker mistakes Korea job termination Korea foreigner JobKorea foreign worker reporting delay Korea unpaid wages foreigner Korea XpatJobs English jobs Korea labor rights foreigners Korea retirement pay Korea foreign worker visa korea rules job change korea immigration work compliance visa violation part time korea teaching jobs Korea Kowork job change Korea work visa korea rules Korea job platforms labor office foreign workers Korea foreign worker side job korea resigning job korea Korean labor law foreigners Seoul Global Center foreign worker unsafe work Korea part-time jobs Korea expat career Korea salary not paid Korea foreign worker resignation foreign worker Korea e7 visa job change korea LinkedIn Korea work in South Korea 2025 severance pay Korea foreign worker job change korea work visa korea freelance jobs Korea labor office communication Korea korea employment visa notice period korea E-7 visa Korea unpaid salary Korea foreigner foreign worker severance Korea employer no response Korea visa reporting deadline Korea unpaid wages Korea workplace change reporting Korea foreign worker visa sponsorship Korea