Missing data and no response from Vodacom

<p>I have a 10G data (wifi) contract with Vodacom and receive an additional 10G night owl on this packages on the 1st of each month. <br />On 3 July 2017 I switched on my wifi for the first time in July. Watch a webinar for an hour and switched the wifi off again. The wifi is password protected. I had no background downloads or "things" running. On 5 July 2017, I watched my webinar and in the middle of the webinar (30 minutes), I received a message that my data was depleted. Thus 90 minutes, 5 days into the new month and 10G used up....IMPOSSIBLE! I was forced to load another 3G to enable me to continue with my work.<br /> I requested Vodacom to call me on Thursday, 6 July 2017 at 13:54. No response. On Monday, 10 July 2017 at 8:28 I logged a call again requesting a call to sort this issue out. I was informed I can't log a call as I had done so already and need to wait 24 hours. When I attended school 24 hours were a day....not 3 days later and still counting! I tried to log a call again on Monday, 10 July 2017 at 19:50 with the same response..."you will receive a call within 24 hours." <br />I want my odd 8G something back OR my contract cancelled as I am clearly paying for something I am not receiving!</p>