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