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