HORRIFYING SERVICES!!!!!

When I joined Gym company in Randburg Square I was told that if I want to cancel before the end of my contract I should pay 20% and now because I want to cancel I'm being told that I should pay the full amount. THAT'S ABSURD AND FLIPPING RIDICULOUS!!!. Cancel my services now and leave me the hell alone I'm not going to pay anything. The 20% you asked for was covered by the last few months that I've already paid!!!!!!!