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