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