Appaled at your so called caller ID added costs!!

I am disgusted at Vodacom's way of operating!! After getting a cellphone contract on their online specials in November, I was very shocked to find out now that I have to pay for this ridiculous caller ID \Service". What underhanded witchcraft is that? The consultant I spoke to when confirming the order never advised me of this for one. Now I have to pay for something as basic as seeing who 8s calling me?? I have never had this with any other service provider. I don't mind the R9.50 but I certainly do mind not being informed of it when I was confirming taking this contract and the terms I asked about and to get a copy of!! This is so underhanded"