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