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