The frozen card

I had app**** a one-year black gym card in February 2014. However, on personal purpose I had to leave South Africa for a while. So I frozen the card in May 2014 by email to the head office of Planet Fitness. I was back to SA in late December 2014. I can't make anytime to go to the gym at that time. So I didn't call to unfrozen the card. Since January 2015, the Planet Fitness started to charge me money from my bank account. Every month it charge me R475 for the gym fee that I have never used!! I called customer service for help. There was one agent (Agent30) helped me through the phone. He promised that he will fix the problem of my card( frozen it and pay back the money that it cost) however, I wait and wait and wait! Three months are gone! I am not only didnt get the money back, but also was charged money by gym every month!!! Yesterday it again charged me R523!!! two times!! I am tired of waiting and calling! I went to the gym in bedford center several times, the answer I got from them is the only way I can do is call the customer service!!! As a foreigner I feel that I have been ignored by this country!!!!!!