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