ONE telephone number. Two years. Thousands of calls. Multiple victims. One bank. And a confidentiality clause attached to every settlement. That sentence, drawn from a detailed case study submitted to IOL by a South African fraud investigator, could serve as the epitaph for the country’s banking fraud crisis – a crisis that, by the numbers, is accelerating. The National Financial Ombud Scheme (NFO) recorded nearly double the number of fraud-rela…