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