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