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