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