Kowork unpaid wages foreigner Korea Seoul Global Center resigning job korea English jobs Korea foreign worker job change korea teaching jobs Korea LinkedIn Korea Saramin foreign worker reporting delay Korea labor office foreign workers Korea foreign worker side job korea quitting job Korea foreigner part-time jobs Korea JobKorea Korea job search guide workplace change reporting Korea foreign worker labor rights foreigners Korea foreign worker unsafe work Korea foreign worker visa korea rules job change korea immigration work compliance foreign worker job change foreign employment law korea work visa korea rules job change visa korea process foreign worker korea immigration reporting steps unpaid salary Korea foreigner employer no response Korea korea employment visa expat career Korea freelance jobs Korea employer shutdown foreign worker Korea foreigner jobs Seoul change job korea visa KOTRA job fair labor office communication Korea Korea job platforms foreign worker mistakes Korea company closed Korea visa visa violation part time korea visa reporting deadline Korea work visa status jobs in Korea for foreigners XpatJobs e7 visa job change korea notice period korea visa reporting timing Korea non-teaching jobs Korea visa sponsorship Korea fired in Korea visa foreign worker ghosted Korea work visa korea job termination Korea foreigner work in South Korea 2025 foreign worker resignation