Where is MY DATA????????

In September 2016, I did an upgrade where I got a cell phone and Tablet. I was never given the sim for the tablet. A few months later I queried something on my account and seen that there was another number, when I queried this I was told I was supposed to be supp**** with a sim for the tablet. I eventually got the sim a few weeks back and activated it. I then called Vodacom to ask where is all the data dating back from September 2016. A query was logged and I was told to call back after 5 working days. On Tuesday I called and was told that "Jacob" had already supp**** me with 5gigs of data and that nothing was due to me. I want proof of this 5 gigs being supp**** to me and I also wanna know who is this "Jacob". and Just FYI, is supposed to be 6 gigs, so could the ***** named "Jacob" give me back my data or I will take this further. This is theft, I've been paying and your staff is *****ing!!!!!!!!!!!!!!