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