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