Telkom is not responding to my contract cancellation request

I submitted my cancellation request on 15/11/2017 for a month to month mobile data contract, effective 30/11/2017. I followed up on the following dates: 22/12/2017 - Called call center and forwarded the original email to the consultant for escalation. 28/12/2017 - Called call center and forwarded the original email again to the consultant for escalation. 05/01/2018 - Called call center and forwarded the original email again to the consultant for escalation and to the cancellations address. Spent more that 1h45 on the line with the call center, talking to 4 different consultants and still waiting for the supervisor to call me back after waiting 45 mins for him. One consultant even gave me 2 invalid email address for complaints and cancellation escalation.

So, at this time I have not received even a confirmation of receipt for the cancellation, no one at Telkom is returning any calls and the debit order is still running for data I am not using.

It is the worst service I have ever experienced and from searching other reviews see that this is the norm at Telkom.