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