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