INTERNET EXPENSE ISSUES

Several months of contacting Vodacom(V), I was contacted me back at last. I was informed my account has such high expenses on the internet due to my excessive use on all social media. I was informed I have a Facebook & Twitter account, as V could see the usage, although I don't even have one of these accounts.<br> <br> My avg. account was around R1500 per month until upgraded in Nov 2014 from where my account rose up to R4500 per month! I was also informed this must be due to me using my phone as a wifi hotspot. It is amazing what assumptions V can come up with, if they themselves cannot even tell you truthfully what's going on. <br> <br> I reported the fact that it seemed my account was hacked, as I could literally see my phone light up when it was locked and numbers ran over my screen. This would make sense now that I've also been informed about my supposed social media accounts. I've requested detail to see what kind of internet was used in order to verify the usage but I was informed that V cannot provide this info, even though it is my account.<br> <br> How can V charge me for data etc. but tell me they cannot provide me with the detail thereof?