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