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