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