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