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