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