foreign worker reporting delay Korea employer no response Korea job termination Korea foreigner foreigner jobs Seoul foreign worker side job korea Kowork visa reporting timing Korea foreign worker job change korea notice period korea expat career Korea foreign worker resignation labor office foreign workers Korea JobKorea Saramin company closed Korea visa labor rights foreigners Korea quitting job Korea foreigner visa violation part time korea teaching jobs Korea korea employment visa jobs in Korea for foreigners work in South Korea 2025 foreign worker ghosted Korea e7 visa job change korea non-teaching jobs Korea freelance jobs Korea Seoul Global Center fired in Korea visa foreign worker unsafe work Korea LinkedIn Korea Korea job platforms work visa status work visa korea rules change job korea visa part-time jobs Korea visa reporting deadline Korea work visa korea labor office communication Korea unpaid salary Korea foreigner foreign worker mistakes Korea XpatJobs KOTRA job fair visa sponsorship Korea Korea job search guide employer shutdown foreign worker Korea foreign employment law korea workplace change reporting Korea foreign worker English jobs Korea unpaid wages foreigner Korea foreign worker job change resigning job korea