Planet fitness bunch of *******

I was told by planet fitness that i would get my refund within 14 days. Its now 17 days and I still never get my refund of R719.12. I contacted the planet fitness customer and billing service. The lady said her supervisor is too busy with someone else account and cannot talk to me and there is no one from finance that i can speak with. I was also told that now they are uncertain as to when i will get my refund and i must just sit and wait. Mind you my account has been paid up and closed since July 2020 and they double debited my account on 27 October. Can someone please advise me if i can press charges on this gym for *****ing money out of my account and if i can also sue them. I want advice before i take these steps. I also have a recording between their consultant and myself showing their incompetence. I am willing to send that recording out to create awareness against taking a contract with this gym. This gym also responded to my review on hellopeter and requested my details. I have sent them everything privately on hellopeter but to date nothing has been done. People please help on how to fight this case. I am going to contact the CPA as well