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