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