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