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