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