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