CANCELLATION OF CONTRACT

I WENT TO TELKOM IN GALLERIA SHOPPING CENTRE TO REQUEST CANCELLATION OF CELLPHONE CONTRACT ON THE 03/01/2016. I WAS TOLD THAT THE CANCELLATION WILL EFFECT AFTER 21 DAYS AND I WILL RECEVE A CALL ADVISING ABOUT THE AMOUNT I HAVE TO PAY, BUT UNTILL NOW THAT HAVE NEVER HAPPENED AND WHEN I CALL THE CALL CENTRE AM TOLD THAT THE REQUEST WAS CLOSED OUT I HAVE TO FOLLOW UP AGAIN SO THAT I WILL BE ABLE TO CANCEL.