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