fired in Korea visa KOTRA job fair Seoul Global Center work visa korea rules part-time jobs Korea foreign worker ghosted Korea workplace change reporting Korea foreign worker foreign worker side job korea foreign worker visa korea rules job change korea immigration work compliance foreign worker job change korea korea employment visa company closed Korea visa work visa status non-teaching jobs Korea e7 visa job change korea unpaid salary Korea foreigner foreign employment law korea labor rights foreigners Korea teaching jobs Korea Saramin change job korea visa Kowork job change visa korea process foreign worker korea immigration reporting steps job termination Korea foreigner foreigner jobs Seoul quitting job Korea foreigner expat career Korea foreign worker unsafe work Korea foreign worker resignation work in South Korea 2025 labor office communication Korea Korea job platforms employer shutdown foreign worker Korea resigning job korea employer no response Korea visa reporting deadline Korea visa sponsorship Korea LinkedIn Korea JobKorea freelance jobs Korea visa reporting timing Korea foreign worker mistakes Korea English jobs Korea work visa korea visa violation part time korea XpatJobs notice period korea foreign worker reporting delay Korea Korea job search guide foreign worker job change jobs in Korea for foreigners labor office foreign workers Korea unpaid wages foreigner Korea