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