Bad client services from Standard bank

My fiance has had his account stopped since last year May and it's a year later and no one has answers at standard bank, we have gone to branches and they also give us stories and tell us they will get whoever is handling the investigation to call him and that person never does . We even logged a complaint and that also fell on deaf ears . A year later still no answer what investigation is being done ?. Poor services for a bank we trusted with our savings and life has come to a stand still cause of Standard bank