Vodacom poor service

I cancelled my contract with Vodacom. I spoke to the consultant who dealt with my query and i asked the consultant if my insurance will be cancelled to which she rep**** yes it will.

2 month after contract cancellation Vodacom insure debited my account for 2 instalments. When i called in they said insurance was not cancelled that is why they debited my account.

i did not authorise this debit and have since being trying to get a recording of my call when i cancelled my contract. Ref: ***