Incorrect information leads to excessive bill

<p>I monitor my data usage on the Vodacom mobile app. The app showed that I have ample data available but I was hit with a R2000 bill. The explanation given to me was that the available data is "night owl". Nowhere does the VODACOM app relfect this therefore I was under the impression that I had enough data and was not aware I was out of bundle. I therefore want Vodacom to reverse the abovementioned amount.</p>