Overcharging on my daughters account

Vodacom has decided to charge us R4000 for 3 months on what they alleged was data used by my daughter on an account of R400 per month. This matter was brought under vodacom's attention on 11 May 2015. i was informed that the best way to get Vodacom moving, would be to report them to \hello Peter". i have decided to give them a change and reported the problem. No response until now. it is about R16000. <br> i am shocked that they did not even bother to come back to me.<br> <br> """