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