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