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