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