cancellation not reflecting on my latest Telkom account

I requested my landline be cancelled with 1 months notice. Should of been done by 8th July. (Case Number ********** 9) I am now getting billed for incorrect things. I have paid for my calls. I plan to pay another R10.53. I wasn't aware that a notification fee had to be paid. I hope this will be resolved asap.

Acc # ********** 27