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