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