Cancellation of conttact

<p>Hi . My son is a special needs person and wanted to enroll with the gym . My husband signed a two year contract for him in December 2016. My son attended gym for 6 months the most and I have been paying R500 rands a month. It's been 14 moths into the contract now with all the fees fully paid . I want to cancel my contract this month . How do I do that and do I need to pay a cancellation fee. Please help. Thank you.</p>