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