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