Vodacom is robbing the people

I took out a data contract in January this year. The contract is for R169 per month which is for 2g data during the day & 1gig from 12am to 6am. On the fist month my data was finished in 6 days considering I only used my pc for 2 hours for 6 days. Every single month since then I had billing problems and data getting used up in a short period of time. Previously I had a Cell C contract and I could not use 2 gigs for the entire month. Last month I first used my data on the 2nd and by the fifth it was finished. We increase the data limit by another R250 which should take my monthly total to R419. To my surprise R798 was deducted. Upon querying this, the usEless staff Vodacom said that we had programs running that caused the bill to increase. I asked her about have a set limit and the purpose for it, she said that Vodacom can charge any amount even if we have a limit on the data contract. Some idiot will respond via this site to say they will look into it an get back to me, but they can not be bothered about the customer. VODACOM IS A BUNCH OF ROGUES. THEY ARE ROBBING ALL THEIR CUSTOMERS AND WILL CONTINUE TO DO SO.