Unlimited Lie

I upgraded to the Huawei Mate 7 Gold on 31/10/15 on Smart plan 100 for R399/m with 1GB/m data and a supposed unlimited data till end of March 2016.<br> Bare in mind when I upgrade I have just over 4Gb of data left from my existing agreement.<br> <br> Everything is working fine until 03/11/15 when I receive a bunch of smses informing me that my data is depleted, I then do a Ussd bal enquiry that shows my existing +-4Gb data still left. Nothing on my phone is working, my connection has been throttled to snail crawl speed and even opening a webpage struggles to happen.<br> I contact the call centre and the agent confirms I have 1Gb avail on my new contract, transfers me and the next agent tries to chalk it up to sig probs telling me to reboot and she'll send net settings. <br> I inform her that I do not have sig probs and this is a data issue. Nothing is done.<br> <br> They cannot answer my questions as to how I can be without data on their supposed Unlimited data promotion, not even my existing data cant be used.<br> <br> So I now have a branch new handset costing R399/p which is of no use to me, really Telkom?<br> Its a simple issue, please sort this.