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