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