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