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