Struggling to cancel telkom service

I logged a service cancellation online on the Telkom Self-Service Website on 16/06/2018 and received the following confirmation email: Request number for service to be cancelled ********** 799 : ********** 4 I subsequently received a call from a Telkom Representative who wanted to know why we are cancelling. I explained that I only used the line for my ADSL connection, but have now moved over to Fibre. We continued to go through the cancellation process and the Representative confirmed that the service has been cancelled. However, I still receive a bill for the same service every month. Initially I thought it's just a notice period, but the current bill for this month runs from 12 September 2018 - 11 October 2018. I'm sorry, but I cancelled in June already. I'm not going to continue paying for a service cancelled months ago. I need the issue resolved asap, but the instore assistants in Canal Walk shopping centre tells me I have to cancel again and go through another notice period. That is unacceptable!