DEDUCTIONS ON MY ACCOUNT FOR EXPIRED CONTRACT

I HAD A CONTRACT WITH FROM MAY 2013 AND IT ENDED ON MAY 2015 WHICH I OPENED AT HYDE PARK BRANCH AND MY INSTALMENT WAS R266.99 PER MONTH. MY LAST INSTALMENT AND WAS SUPPOSED TO BE ON THE 1ST MAY 2015. I STARTED CALLING THEM IN THE BEGINNING OF MAY 2015 TO ENSURE THAT MY CONTRACT IS TERMINATED AFTER MY LAST INSTALMENT AND THE CONSULTANT PROMISED THAT HE WILL SEND THE REQUEST TO END MY CONTRACT AND CONVERT MY NUMBER TO PREPAID. BUT THEY KEPT ON SENDING ME THEIR AIRTIME AND NOW THEY ARE DEDUCTING VARIOUS AMOUNT IN MY ACCOUNT (JUNE R313.99 AND JULY R323.99)<br> WHEN I DID MY FIRST FOLLOW UP ON JUNE THE CONSULTANT THATO TOLD ME THAT THE REQUEST HAS BEEN SENT AND THE AMOUNT R313.99 WAS MY LAST INSTALMENT AND I WAS CHARGED MORE BECAUSE IT WAS MY LAST INSTALMENT AND GAVE ME THIS (REF NUMBERS *** &amp