NEVER GO FOR VODACOM PHONE CONTRACT

I am extremely FRUSTRATED and ANGRY WITH VODACOM. THEY HAVE BEEN DOUBLE BILLING ME FOR THE PAST 6 MONTHS. I HAVE BEEN LOGGING CALLS , VISITING BRANCHES AND CALLING THEIR CALL CENTER- USELESS!!!! NO ONE SEEMS TO CARE ABOUT WHAT MY PROBLEM IS. THEY KEEP TRANSFERRING ME FROM ONE DEPARTMENT TO THE NEXT. I HAVE PROVIDED THEM WITH PROOF THAT THEY ARE DOUBLE BILLING ME MULTIPLE TIME BUT STILL NO ONE SEEMS TO CARE. I CANNOT WAIT FOR THIS CONTRACT TO END!!!