Vodacom stole my data as i was watching!

Vodacom chowed my data without me even using it... I had bought 1 gig anytime data to last me... I had also just topped up earlier with a standard 30mb fb data, which is very small i know... As i was sleeping i got notifications that my fb data is running which i then woke up and switched off background data for 99% of my apps excluding whatsapp... Just after a few seconds of that, i check and my fb data has run out, including my anytime data... Mind you that im used to buying data and how to preserve my data. I was sleeping, no data being used but then all of my data was run out. In this economy, at this time of the year Vodacom decided to finish me off... Vodacom is a ****!!!!