DSTV Multichoice Bad Service

I have cancelled my account many years ago. My account at that time was paid by debit order. When i cancelled the account i was told i had to pay the following month, which was done via debit order. I then phoned at time to confirm if i owed and they said no.

Now they have sent me to the lawyers as they say i have not paid the insurance of the DSTV decoder since then. Surely they put everything under one account? No one phoned me to say i was owing the insurance, at that time, if i was owing by did they not deduct via debit order like normal??

I feel this is how they ***** money from people and catch them out.

I need DSTV to clear my name