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