A R50 limit exceeded without notifying me! Damn *************!

<p>I am due for an upgrade and quite honestly, I cannot bear the thought of having to be disappointed by my Vodacom bill another month.I deliberately put a bar of R50 on my account to stop exceeding my personal data limit.I have not been notified once of the use of the R50 and so all this time I have expected that the R50 has not been in use/d.I logged onto my account this week, absolutely horrified to find my bill sitting at R930 then instead of approx. R500. I specificially put measures in place to prevent excessive data use and so that I can keep track and now this. I'm so over my data issues with Vodacom.So disappointed!!!</p>