Vodacom stalling to give early cancellation quote

I have been trying to get vodacom to send me a settlement amount for about a month now. The best I could get after finally getting a person on the phone, which I feel is a delaying tactic, is an sms saying, 'you will receive an Sms & Email with your exact cancellation or conversion rate. Until such time, your vodacom cancellation is not confirmed.'

They are taking a long time just to tell me how much I owe them. How is this even legal?

All the details of my account are in their system, they use them to bill me and are able to tell me how much I owe them each month, but cannot give me an early cancellation quote.

They have delivered a good service until, now. I don't know how I can ever want to use them is it is this difficult to cancel a contract. They are changing my opinion of them with each delaying tactic they are using.

It is sad because I would have like to use the again should I need another cell phone contract in the future.