BAD SERVICE....

I have a Top Up 20GB Monthly Data contract with Vodacom, never have I reached anywhere near the 20GB cap, now half way into September and I get locked out due to capacity being exceeded. On looking at the detailed billing off their website, I noticed discrepancies, 20th and 21st respectively show downloads of 74.66GB and 402.55GB respectively, this clearly is not possible on a 20GB 3G link? I logged a complaint and asked that this be investigated days ago, still no feedback ???? When you call their call centre you have to constantly repeat your personal info even if you call them multiple times in the same day, it's a chaotic company that does not care about it's customers, as per the stats on this site 92% of clients are unhappy vs only 8% who are, I am not in the slightest surprised. When will these corporate companies wake-up to the fact that without clients they do not have a business!!!!