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