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