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