Wrongfully informed of gym contract

On the 3rd of oct I was approached by Clinton, a sales representative for zonefitness willobridge, he came into our store and signed me up for a gym contract which he did not explain to me properly, because I live in the strand area I told him what if I need to cancel the contract, his words to me was all I need to do is pay 60% of my monthly payment, when I recently wanted to cancel it as for I am taking a job offer closer to strand they told me I can't, when doing the contract I did not even pay the full ones off fee, he payed it for me. And the \physical readiness questionnaire (parq) was not done with me. My biggest problem is the fact that I have a 36month contract that I now can't cancel. And the reason why I signed up was be he said should. I no longer work there I can cancel at anytime and the closes gym to me Bellville. "