Contracts changed, bad communication

In the last few months I have had issues with all 3 my Vodacom contracts. They activated Clive content on both my phone numbers without my knowledge and consent. Although they refunded me AFTER A HUGE FIGHT, they insisted it was not their fault or responsibility. I have a data contract of 30g + 30g. The first month I enquired why I had no night owl data. I was informed there are no more night owl contracts and that I received 30g + 30g free any time data. This was the case for the first 5 months. The last 2 months I realised I had only half the data. All of a sudden I am told that 30g is night owl data. So the specifications of the contract suddenly changed mid-way and the different agents all tell me different things, which means they don't even know what is going on with their own product. I don't even have to tell my friends to be wary of this bad service because they have all had similar experiences. I am heartily sick of this bad service!