Highly disappointed

Iam highly disappointed in Vodacom and how they do business getting other companies to call their customers misleading them on their contracts. Two months ago I was called to upgrade my contract to a better deal I specifically asked the consultant if it would affect my upgrade of my handsets and she said no I would still be able to upgrade my handset now I go to Vodacom to upgrade the handset and they tell me I cant. As a consumer I know my rights and will not take this lightly. I suggest Vodacom reverse this as I was mislead. I been a customer with Vodacom very long and if u want to lose me as a customer then please ignore this complaint so I can take this further. The companies u get to call your companies lie to us and I hope this is taken seriously.