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