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