Overcharged me on Data

I lodged my complaint to Vodacom's customer complaints line 3 weeks ago, I have received no feedback or resolutions to this. I have been overcharged by close to R2k for data usage. I always receive notifications from Vodacom if my data bundles are running out or are depleted, on this particular month I received nothing, resulting in out of bundle rates used for billing. Vodacom has set the precedent of notifying me, enabling me to activate additional budles. <br> <br> Reference number - A1-X1PZ-MP52XA