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