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