Vodacom consultants mislead customers

Vodacom is tranfering from pillar to post , I cancelled my contract after 24 months with them and i was informed by one of the retentions consultant that i can have a data contract which is a month to month cover, however i called about a month later to cancel the contract instead i was informed by another consultant that they have a new deal of just a R150 where you get 20MB anytime and 20MB at night, this was not true as i was receiving 10MB anytime and 20 MB. I realised how vodacom is misleading and lying to customers and i wanted to cancel only to be informed that i entered into a 24 months contact