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