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