Fitness First is one of the largest gym franchises in the world, with over 1 million members spanning over 19 countries. 

According to Wikipedia, Fitness First was surrounded by controversy regarding a number of issues. Most notable is the court case in which Fitness First did not refund a membership for a woman with a serious medical condition. The second notable controversy occurred when Australian Consumer magazine rated Fitness First as having the most aggressive psychological sales tactics when getting customers to sign tricky gym contracts.

You could call and try to cancel your Fitness First gym membership. You could visit your local Fitness First gym in person and try to speak with a manager. You could write a certified letter explaining you want to cancel your Fitness First membership. Or you could let CancelWizard cancel your Fitness First membership for you.