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