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