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