Cancelled and still being charged

I have cancelled my Premium Package prior to the 1st of November, I see that a payment has still been taken of my account on the 1st of November. My issue is this, I know DSTV charges pro-rata for their packages and why are they now charging for a month of DSTV when I have cancelled my Service. I do not believe that DSTV will allow me a month of watching TV and only pay for the services at the end of the month.

It was an issue to change my DSTV Details as well for years. Someone please call me back as I am going to reverse this amount from my account and stop further payments to DSTV.

With Best regards, Dharsha