Incorrect billing, no assistance from the callcent

I received my November 2015 bill with approx R1,000 extra charge on out-of-bundle data usage. I had received no notification that I was out-of-bundle. This occurred previously with Vodacom accepting they had a notification issue, and I was refunded within days. <br> I called 27 Nov in the morning to log a new complaint, by the afternoon I had received no ref via sms so called again to find nothing was logged. Redid the complaint and received a reference. <br> To date I have called numerous times, this evening dealing with a very unresponsive and what seems unqualified person. I was told from their call centre that they don't know who it is assigned to and cannot assist me.... I must log a complaint on Hellopeter to get assistance! I was actually referred here by the Vodacom call centre. How can the Customer Service call centre not be able to assist me?? Also, the call centre assistant confirmed that none of my previous escalations were noted on the open ticket even though those call centre persons reassured me they added a note. <br> More to the out-of-bundle : started charging me midmonth out-of-bundle, then a data session inbundle, then out, then in... if I'm out of bundle how can i gobackin