Vodacom still not resolved incorrect billing

<p>Vodacom messed up my contract when I upgraded. I got double billed for line rental and they billed me for the free promotional 5Gb data 2 months in n row. I tried to get this resolved with them many times but it is still not sorted. I posted this on HelloPeter. They said a consultant will contact me. It never happened. They then said it is sorted out. But when I login to my account and check my billing they only removed the billing of the 5Gb data and I am still being double billed for line rental for last month. This month I am still billed for 5Gb data and no idea why. This is not acceptable.</p>