CANCELATION AND STILL THEY DEBIT MY ACCOUNT WAITING ON REFUND

I HAVE BEEN WITH AUTO N GENREAL VEHICLE INSURANCE FOR 4 YEARS AND HAD NO CLAIMS, HOWEVER EVERY YEAR MY PREMIUM GETS PUSHED UP AND WHEN REQUEST A DISCOUNT THE BEST THEY COULD DO WAS GIVE ME R20 OFF MY NEW PREMUIM. WITH REGARDS TO THAT I HAVE DECIDED TO CANCEL AND MOVE TO ANOTHER INSURANCE. I CANCELED MY POLICY ON 19 NOVEMBER 21 AND WAS TOLD NO DEBIT ORDER WILL RUN...BUT TO MY SURPRISE THEY DEBIT MY ACCOUNNT FIRST THING THIS MORNING... I HAVE MADE NUMBER OF CALLS, HAVE SENT MY BANK STATEMENT AS PROOF AND JUST GET TOLD IT WILL BE PASSED ON TO RELEVANT DEPARTMENT.....IM SO DISSAPOINTED IN THIS INSURANCE AND WOULD NOT RECCOMEND TO ANY FAMILY OR FRIENDS.