fired in Korea visa company closed Korea visa visa violation part time korea work visa korea rules e7 visa job change korea visa sponsorship Korea foreign worker unsafe work Korea work in South Korea 2025 Korea job search guide foreign worker job change foreign worker resignation part-time jobs Korea expat career Korea non-teaching jobs Korea work visa korea KOTRA job fair job termination Korea foreigner job change visa korea process foreign worker korea immigration reporting steps foreign worker reporting delay Korea Korea job platforms jobs in Korea for foreigners labor rights foreigners Korea teaching jobs Korea Kowork foreign worker mistakes Korea foreigner jobs Seoul employer shutdown foreign worker Korea foreign employment law korea workplace change reporting Korea foreign worker Saramin work visa status notice period korea foreign worker side job korea unpaid salary Korea foreigner visa reporting timing Korea Seoul Global Center resigning job korea change job korea visa quitting job Korea foreigner freelance jobs Korea visa reporting deadline Korea JobKorea labor office communication Korea LinkedIn Korea employer no response Korea XpatJobs unpaid wages foreigner Korea foreign worker ghosted Korea English jobs Korea korea employment visa labor office foreign workers Korea foreign worker job change korea