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