Cell C not keeping to contract terms

<p>I took out a new Cell C contract on 27 March 2015 and the contract is due to expire on 26 March 2017 (2 year contract). When I phone to cancel the contract and convert it to prepaid, I was told the contract only expires in May. How can they just amend the term of the contract as they please. They make it extra difficult for people to cancel a contract. I will cancel my other contract as well when it expires. I cannot deal with a dishonest company.</p>