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