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