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