Ridiculous usage of Data and money

Hi,

I have bought 1GB data on my ********** number - I had plus / minus R900 and something left. It was not even 40 minutes then all my data was finished and I am now left with R200 something rand.

It is saying it used 1.77 GB I did not even go onto any apps.

It is also set up for the device to warn me when the data runs low. This is unacceptable and not the first time. I want the money back as this was such a waste now, we pay a lot for contracts every month and it is unfair for Vodacom to just take money and data...

I am furious ...