UNLWAFUL DEBIT ORDER

I RECIEVED A CALL FROM ONE OF YOUR SALES CONSULTANT IN FEBRUARY. OF WHICH I DID NOT ACCEPT THIER DEBIT CHECH AND I HAVE BEEN TRYING TO GET THE POLICY CANCELLED SINCE MARCH AND THE DEBIT ORDER FROM FEBRUARY TO MAY TO BE REVERSED BACK TO MAY ACCOUNT. THE MONTHLY DEBIT ORDER IS R3291.99 PER MONTH. TOTAL AMOUNT TO BE REVERSED IS R13 167.96. AS I DID NOT AUTHORISE THE DEBIT ORDER