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