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