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