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