Debiting a cancelled policy

Very bad service in the billing department! They failed to debit my account- and I called them to rectify this. From July until September, they kept on messing my debit order. I spoke to Thabang, Simphiwe and a million other people until I eventually cancelled this policy due to poor administration on the debit side. Last month I cancelled and even got a cancellation letter. However they debit R3000+ and they still sent me a lapse letter even though I cancelled the policy and they gave me confirmation. Yesterday, they debited the normal R1800 debit order and they also debited R5000+ even after I got confirmation that the policy was cancelled successfully. What sort of poor administration is this? I will reverse the money and I will definitely go to a branch and cause a scene. What if my bond bounces because ABSA idirect from incorrectly debited almost R7000 from my account? Please cancel the debit orders! Now- i must lose money for the reversals I have to do due to this! ABSA IDIRECT IS REALLY UNPROFESSIONAL