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