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