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