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