Anytime Fitness gym Durbanville ignoring refund request

I was a member of this gym (Durbanville branch) until I cancelled my membership, I notified the gym of an extra payment and requested a refund. The management has since ignored my request, emails and calls. There is no feedback from them. Keep in mind if you sign up with them as I am having to plead for my own money back and I'm getting ignored. Beware