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