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