SERVICE FEE CHARGED TWICE FOR MORE THAN A YEAR

IT WAS JUST BROUGHT TO MY ATTENTION THAT I HAVE BEEN PAYING DOUBLE SERVICE FEE ON MY CREDIT CARD. I CALLED THE CREDIT CARD DEPARTMENT ABOUT MY CARD THAT IS EXPIRING AND THEY TOLD ME I HAVE 2 CARDS OPEN WHICH IS NOT CORRECT, I ONLY HAVE 1 CREDIT CARD, I HAVE JUST CHECKED MY CREDIT CARD STATEMENT SINCE 2016 AND WHAT A SURPRISE THAT I HAVE BEEN CHARGED DOUBLE. NEDBANK NEEDS TO REVERSE THESE CHARGES!!!!!!!!!!!!!!!!