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