Disappearing airitme and data

I bought airtime this morning, and within seconds it was gone, I then went on to take airtime, through their airtime advance and again it was gone. I further bought data and kept getting messages that is depleting until the final message came through that I have run out on data.

I called and an agent called Nonhlanhla, checked on their system, said the first airtime I loaded showed that I had used the internet, when, I don't know. However she also noticed that the system is not showing how my data disappeared, I am still waiting for feedback from her. Positive feedback that is. Vodacom is becoming the ****piest network.