Kowork job termination Korea foreigner foreign worker ghosted Korea Saramin foreign worker job change korea resigning job korea LinkedIn Korea JobKorea foreign worker job change work visa status fired in Korea visa foreign worker unsafe work Korea labor office communication Korea korea employment visa quitting job Korea foreigner company closed Korea visa foreign employment law korea unpaid wages foreigner Korea foreign worker mistakes Korea freelance jobs Korea part-time jobs Korea change job korea visa visa sponsorship Korea labor office foreign workers Korea employer shutdown foreign worker Korea teaching jobs Korea Korea job search guide expat career Korea visa reporting timing Korea foreigner jobs Seoul notice period korea Korea job platforms unpaid salary Korea foreigner XpatJobs non-teaching jobs Korea work visa korea English jobs Korea e7 visa job change korea jobs in Korea for foreigners work visa korea rules KOTRA job fair work in South Korea 2025 Seoul Global Center labor rights foreigners Korea foreign worker resignation employer no response Korea foreign worker reporting delay Korea