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