Utterly disgusted by Vodacom...misleading customers

I recently called Vodacom to cancel my contract that was due for an upgrade. I was then offered a special contract by the cancelations department and then after many calls decided to take the offer. On numerous occasions I double checked the details of the offer. Towards the end of the first month in realised that the 100 Vodacom-Vodacom minutes that I was promised wasn't loaded. I called the call center who then said that it is not part of the contract but they would check the recordings of the calls and get back to me. They later confirmed that two of the agents had indicated that this was part of the offer. They apologised and said that they would collect the device. I asked for a manager to contact me so that I could discuss the matter before making a decision. Two weeks later, and I still haven't had anyone call me back. As I told the agent... I am totally disgusted in the service received false..Vodacom... Promising customers something and then not delivering... And the explanation was simply, sorry that doesn't come with the offer .. It was a mistake. How disgusting!