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