PLEASE CAN STANDARD BANK PROVIDE ME WITH ANSWERS!

I logged a call with card division on 9 March 2016 with Lebogang. Standard bank are billing me finance charges from 2010 and from date of receiving my first credit card. This is *******. Lebogang did not get back to me. Two days later, I had to make another call despite her undertaking on 9 March 2016 that her manager would get back to me. You can't bill me for charges for 6 years ago! Its prescribed. Not the first time I get ********** by standard bank in respect of bank charges. Standard Bank <br> are still unable to give me a breakdown of how they arrive at the finance charges. Can someone who knows how to give me a breakdown please revert to me. I'm still holding for someone from standard bank's legal department.