Debiting my Account after Cancellation

i cancelled my policy with Miway mid September online, then i called a week later to confirm as no feedback was given to me after cancelling, then i cancelled with the operator who then said he will try reduce my premium. After a week towards my pay day i cancelled the debit order under the assumption that the guys no response meant that he could not beat it. On the 21 October i received a call from a consultant who informs me that my policy has not been paid, i explain to him i cancelled in September but apparently i was not on the system. i then ask him to cancel my policy and he tries to beat the new offer i received but when he cant, he then says he will cancel the policy to ensure that no more payment goes off my account, to my suprise this morning i see my account has been debited and when i check with my bank they re opened the debit order and used a new debit order reference. Please stop debiting my account, it is for such reasons i cancelled my account to begin with. If my account is debited again i will take this up with the Ombudsman.