Where is my data ???

<p>I purchased 100MB of data and in 10mins it had been used up. I am well aware of background apps that use up data and always close a session when I'm done using an app. My updates are set to update only via Wifi. I was not on a data hungry app like Instagram. This was a normal browsing session. When I speak to a vodacom call centre agent she mentioned that the reason my data ran out so quickly is because I was connected to LTE. Not that this matters but I am a I.T administrator so I am well aware of LTE(4G). On a monthly, I average about 500MB in 12 - 15 days. I was put through to the manager Bryton who was just as unhelpful with his explanation. If you going to give me stories, at least let them make sense. Been a loyal vodacom user for years and years but this has got me questioning my loyalty.....</p>