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