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