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