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