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