Telkom/Showmax *****ing my data

I subscribed to Showmax via Telkom on 23 Dec 2017. This package is supposed to offer you free data on Telkom when using Showmax. However my data is being depleted when I use Showmax.

I reported this to Telkom on 30 Dec 2017. They agreed that this was incorrect and promised to resolve. Called again in the first week of January and was told that the issue was being investigated. Called again on 8 Jan 2018 and was told that the issue was being resolved between Telkom and Showmax and I would receive feedback in 24 hours. No feedback received to date.

In the meanwhile my data is being steadily depleted whenever I use Showmax.

Telkom is selling this product **********ly. Anybody else with the similar problem?