Extra Charge for Caller ID

I recently got a new cellphone contract from Vodacom at Clearwater Mall. While highly satisfied with the new purchase my satisfaction quickly turned to disappointment when after three days I could no longer see the caller ID on incoming calls.<br> <br> I called in to Vodacom customer care to enquire about this and I was utterly shocked to find out that viewing caller ID on contract numbers comes at an additional charge of R9.50. I feel completely cheated as none of this was explained to me when signing the contract.<br> <br> Small as R9.50pm may seem, I refuse to pay it on the basis that 1. It is a piece of information that needs to be, but was not, explained to me and 2. I know of nowhere else where I would have to pay this fee. I sincerely an considering cancelling this contract because of this.