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