PREMATURE CANCELLATION THAT WAS NOT ACTIONED

I AM SO DISSAPOINTED WITH CELLC AS I PAID A PREMATURE CANCELLATION AMOUNT OF R1430 ON THE 30/06/2015 AT 11:15 I THEN WENT TO THE STORE IN KRUGERSDORP ON THE 07/07/2015 AT 14:39 TO COMPLETE THE PREMATURE CANCELLATION LETTER AND GAVE THEM PROOF OF PAYMENT AND THE CONSULTANT NAMED SAM ASSURED ME THAT THE CONTRACT ON THE ACCOUNT NUMBER ***6 WHERE CANCELLED NOW I JUST RECIEVED A LETTER FROM THEIR LAWYERS SAYING THE ACCOUNT IS STILL OPEN WHEN I WAS ASSURED THAT IT IS CLOSED AS I TOLD THEM I AM NO LONGER WORKING THE CONTRACT NUMBERS ARE: ***,***,*** AND MY CONTACT NUMBER IS *** PLEASE CANCELL THOSE CONTRACT AS I PAID THE CABCELLATION FEES AND MOVE THOSE NUMBERS TO PREPAID AS THIS IS AFFECTNG MY CREDIT STATUS NEGATIVELY...