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