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