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