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