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