Billed for data/ no sms indicating data complete

Hello Peter<br> <br> I am a Vodacom customer and I was very happy with their service up until today when i checked my account balance online. I am being billed R500 extra for data used out of bundle. It is a fact that I used all my in bundle data but usually when I use up my in bundle data, i receive an sms from Vodacom indicating this and i usually top up the data. For the month of February i received no such sms and i was told that i am liable to pay the out of bundle rate for the data used.<br> <br> The reason for my unhappiness is that Vodacom did not offer to let me pay afterwards for a bundle to cover the the data I used especially since I never received an sms notifying me that the data was used up. This was the norm of the customer service I experienced in the past from Vodacom but during this month they failed to deliver such service.<br> <br> I also fear that many of their customers will be caught by the failure of their system to protect their customers. Once again I am not trying to get free data from Vodacom. I would just like to make sure that they are also held accountable for their system failures.<br> <br> Thank you<br> Kind regards