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