cancelled standard bank funeral plan still debitin

I cancelled my Standard Bank Funeral Plan that deducted money from my account by calling the call centre two months ago at the bank . I was informed that the next payment would still be deducted as the bank needs a month to cancel the monthly debit order. Its now 3 debit orders later and this thing is still deducted. I didn't have money in my account because I knew that no debit order should come through. To my surprise it did and its messing with my credit record. Standard Bank Customers, I warn you, DO NOT AGREE TO THEIR FUNERAL PLAN DEDUCTION because they are very quick to start the deduction but when you cancel for financial reasons, its a hassle. Shame on you Standard Bank! Im never agreeing to any of your other products!