False information on the product sold

Good day Towards month end of January or beginning of feb i called vodacom customer care to cancell my contract as it was coming to an end. I spoke to the guy whom i can’t recall who it was. He asked how much am i using on my data and airtime and i told him. He advised that they can minimise that by giving me R300 or R200 airtime and 2 gig data. I agreed to that and it never happened. I waited for airtime and data i never received. On the 1st March Vodacom gave me R220 airtime plus 250mb night owl. I phoned the same day and asked vodacom to cancell the contract because this is not what we agreed on and their consultant false sold the product to me to get business. I spoke to the guy called Masilo Mogwabhada who told me there is nothing they can do and that his manager Emmanuel is going to tell me the same thing i can take them as far as i want they are not going to cancell my contract instead they are going to charge me a cancellation fee. He didn’t want to transfer me to his manager he kept on saying his manager will give me a call on the same day and it never happened. I want them to cancell my contract with immediate effect without any cancellation fees because it’s not my fault it’s their consultant fault who misled me into buying their product.