Data contract billed 8 months after dispute

My data contract that Vodacom forced on me is still not cancelled, after logging a dispute in November 2017, waiting 4 months for feedback, and still being billed for June 2018.

I will cancel everything with Vodacom because of this, and go for a lesser option at their competition, just to contribute my tiny amount of non-compliance, like the sheeple we are forced to be.