Useless Telkom cancellation department

I requested Telkom to cancel my data contract through their online process in Oct 2018 (Ref No: ********** 1) and this was a month before the contract was supposed to expire. I went online again and had a chat with one of their online agent to confirm that my request was processed successfully and the person said everything is fine. Now it’s a month later after my contract was supposed to be cancelled and I get an invoice showing that the contract in question is still active. This is very upsetting considering that I followed all the steps stipulated by Telkom to make sure that this contract ends of its expiry date but I’m being forced to pay for a service I don’t need.

Can someone from Telkom sort this out ASAP and send me an email confirming the contract is cancelled