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