Vodacom ripping loyal customer off

I'm really dissapointed after so many years I have served using vodacom sim card. I was perfectly doing fine, up until I decided to take a contract with you guys, which is being loyal to my network, firstly they told me I will loose my talking points, which I accepted it. They never told me about my network plan I lost it. Now incoming calls I cant see who is calling its showing unknown every number that calls me. I called vodacom for assistance they told me I must pay a certain fee monthly to activate my caller ID to see who is calling. I'm really dissapointed with vodacom!. They nevet disclosed that when they help you taking a contract via phone call. Now I must pay for something that I didn't even plan on paying. Vodacom after this contract I'm done with you guys. Don't even mind paying a cancellation fee. I'm really angry!