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