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