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