Vodacom airtime balance wrong.

<p>Today I loaded R30 rand airtime and bought data for R5, the data was not activated as yet, I used whats app and the internet during the day, at 15:21 I got a message from vodacom saying that I have been using R2 per MB scince 7am. I checked my balance about 5 times during the day and the amount was the same from 7am today, I also switched my fone off and on a few times during the day, I did not make any calls, after the mesage I got from vodacom I checked my balance and the airtime was used up.</p>