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