Telkom delays cancellations

I tried to cancel my data portion due to financial reasons and my line will be migrated which someone else is going to pay,however Telkom wants to extend the cancellation a month as a notice period. This was never communicated upon opening up an account.<br> <br> Now they want me to pay for an additional month which I cannot afford.<br> <br> The consumer should be protected against companies like telkom extending the cancellations policies and causing some people to be possible black listed for not making payments