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