Vodacom insurance *******

I cancelled insurance on my mobile on 20 June with Nonhlanhla at 4:45 who assured me it is canceled. I received sms on 21 June of the cancelation...today I check my statement and it's still reflecting. I have already insured it elsewhere where I won't be ********** by additional mobile covers which Bocacom insurance keep adding to my bill that I did not take up..