High data usage

<p>I complain last week wed on here about my wifi ugage. </p> <p>Some one from Vodacom phoned me, told me all the places on my phone where to switch off so that i will not use so much data from my wifi device. I had told them that there was only 2 phones connected to the device. </p> <p>so last week i had 3 gigs of data loaded to the device. so from wednesday night till saturday sometime, the 3 gigs of data was finished. No downloads, no streaming, just going onto whatsapp, and general internet and facebook. How can 3 gigs just go like that when all the automatic updates stopped, no downloads, no streaming. Its crazy. I want to cancel my wifi contract it hasnt even been a month and i have gone through over 20 gigs of data just during the days, its over priced and madness. </p>