Unauthorised debit orders

I have been with Planet Fitness Newtown JHB for a while now. Proactively they sent me a msg just after Lockdown to inform me they will stop my debit order since gvt closed gyms. I was very happy with the approach. Months down the line they just activate my debit order, this time, without notifying me. I reversed it and sent them an email to tell them not to debit since I am not back at work, still working from home at the sametime asking them why do they debit without any communication. They decided to ignore my email and continue to debit, I reversed again and watched them closely. They are getting better with times hey, for every time I reverse is like I'm punished, they increase the debit order. The one I just reversed today which they debited on the 31st December 2020 is R730, others back on months were R600 plus, R500 plus. We are now playing "Tug of war", in my expense. For every time I reverse money over R200 I am charged R65 by my bank, which already I have reversed 4 times. I want that fees back in my account Planet Mars. Who's fooling who here. I guess I am fooled. Get you acts together Planet Fitness, I am fed up with your planet now.