Free me ****???

Hi, i bought a telkom 5gig free me bundle. I had hoped this would help me save on my data for the month as i like music and series. So after i loaded the bundle i decided to test it with the recommended apps. I used Simfy Africa to stream some music. Before i did that i checked my data and data usage on phone and via *188#. So after two minutes of use i see my data is been used and not that free data they so well advertised. So i called up the call centre and was told prove it. Me prove that you **** and *****ing my data? I asked how can i do that and i got no answer from the operator. He then asks me to hang up. I told him i want to rate the service. Im curreny still experiencing this problem and feel cheated out of 300 rands. This needs to be fixed.