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