TELKOM DEBIT ORDER MANDATE IS A FAILURE

EVERY 2ND MONTH TELKOM DOES NOT DEBIT ME. IM ALWAYS DOUBLE DEBITED BY TELKOM ON THE 2ND MONTH. WHEN I GO TO TELKOM STORES TO QUERY THE REASON I WAS NOT DEBITED ITS ALWAYS AN EXCUSE. I CONTACTED TELKOM LAST AND THEY TOLD ME THEY DID NOT HAVE MY BANKING DETAILS HENCE I WAS NOT DEBITED, I GAVE THEM MY BANKING DETAILS. NOW I HAVE RECIEVED AN EMAIL BY A DEBT COMPANY REGRDING MY TELKOM ACCOUNT.

WHY IS TELKOM REFERRING ME TO A DEBT COMPANY WHEN THEY ARE THE ONES THAT DID NOT DEBIT ME?

I AM CONSTANTLY CALLING TELKOM AOT OF ANGER BECAUSE THEY ARE FAILING TO DEBIT ME EVERY MONTH. I HAVE BEEN WITH TELKOM FOR 4 WHOLE YEARS YET THEY HAVE BEEN FAILING ME SINCE LAST YEAR.

WHO'S RESPONSIBILITY IS IT TO ENSURE I GET DEBITED? THEIRS OR MINE?