BAD SERVICE FROM TELKOM

I HAD A BUSINESS WHICH I HAVE RELOCATED. TELKOM ADVISED ME TO SUSPEND THE LINE UNTIL RELOCATION HAD TAKEN PLACE. AFTER 6 MONTHS TELKOM INFORMED ME THAT A LANDLINE COULD NOT BE INSTALLED IN THE NEW PREMISES. I DULY WENT AHEAD IN DECEMBER 2015 TO CANCEL THE LANDLINE. AFTER NUMEROUS E MAILS AND ATTEMPTS TO CANCEL MY BUSINESS ACCOUNT, TELKOM IS STILL DEDUCTING R670.97 FROM MY BANKING ACCOUNT EVERY MONTH. EVERY TIME I CALL TELKOM THEY INFORM ME THAT THE LINE HAS NOT BEEN CANCELLED. I HAVE SENT E MAILS TO VARIOUS DEPARTMENTS, MADE CALLS ON A WEEKLY BASIS AND STILL NOBODY CAN ASSIST ME. PLEASE CAN YOU HELP ME AS I CANNOT AFFORD THIS MONTHLY PAYMENT OFF MY ACCOUNT EVERY MONTH.