Sneaky charges and sickening attitude by Zone Fitness

I'm terribly disappointed in Zone Fitness. This month they debited me an additional R99 on top of my R399 monthly fee for no apparent reason. I tried to complain, but their Contact form on their website doesn't work. Eventually I was given an email address, and their reply said I must refer to my contract where it says they're entitled to charge R99 twice a year on top of fees. This seems totally unfair and illogical. I wasn't given a copy of my contract when I signed up, nor did the sales consultant mention the R99. Plus, when I signed up I was told I could freeze the membership for 3 months whenever I needed to - but when I asked about this recently I was told if I freeze they will still charge R133 a month even though I have no access to the gym. I wasn't told this. I'm so disgusted that I want to cancel my entire membership and they are demanding a cancellation fee of R200. Blatant rip-off. I had returned the R99 fee via my banking app before I could get hold of them, believing quite reasonably that it was an error, so now they are saying they refuse to cancel my contract even though I paid the R200 fee with immediate clearance. They say they will continue debiting my account R399 a month until I pay the R99. This is extremely inconvenient for me, as I live very close to the gym and now I'll have to travel a distance to go somewhere else, but I don't want to support these kind of shady business dealings.