Is Vodacom a company that respond??

I logged a complaint on Hello Peter last week about Vodacom. I did not get a response. <br> <br> Last week I bought 1 Gig data on my contract account and my bill was about R1000. The next day I get an sms that the data is finished. So I log onto the mobile app and now my account is R4200??!!!??<br> <br> How can this be? Vodacom, please investigate and explain to me how I can be billed R3200 in one day.<br> <br> I am disgusted that Vodacom cant even be bothered to respond to my complaint.