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