Data and inaccuracy

Vodacom is a disdapointment honestly I've been up all night because I'm a student Ive loaded almost R100 worth of data and it's being eaten up by nonsense of Vodacom I know about apps eating data and all that but I monitor it and i didn't even send a message or anything but all of a sudden my data is finished i better be repaid tomorrow i took screen shot and bank transaction to prove that not even more than 5 min has gone by and my data is finished and AND ITS DATA WORTH ****EN IM I'M A STUDENT THIS IS UNWXCEPTABLE IM MIVING TO TELKOM OR CELL C AS SOON AS MY DATA SUTUATION GETS SORTED OUT I wouldn't be sending this if it wasn't for my TELKOM SIM I mean I use my phone for internet access when I'm not at school this is ridiculous honestly I need help to get my money back and I have proof for any one who is going to tell me otherwise