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