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