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