ABSA ignores their clients and while charging interest for *****

My credit card was ****** and used without my permission. I opened a police case, as well as a ***** case with Absa. They promise to contact their clients after 48 hours, but to date, they are yet to give me any report on the progress of their investigation. It's been 3 weeks now, and after numerous calls, hours of frustration and several emails, they just keep ignoring me. ***** case ref C-***8.