Gym Company is not fair

Employees of Gym Company (Maponya Mall) are making people join their gym under false information. I was ******* into signing, then now they are telling me I owe them R600 and that if I need to cancel it i must pay a cancellation fee, mind you I don't even have a gym card. This is wrong, it needs to be fixed. Don't try to push sales at people's expense.