Double debited over December!

I was just debited double due to “levy fees ” that I was never made aware of after the consultant who signed me up never pointed it out, never gave me a copy of the contract either hard copy or electronic and no communications were sent to me whatsoever. They say a refund is not due, due to the fact I was debited “correctly” as it is stated in the contract I never received. This is after I attempted to cancel when I started to work from home and no planet fitnesses are in my area which I believe is grounds to cancel without additional fees which was mentioned during sign up but when I called head office was told this is not the case and I would have to pay the calculated cancellation fee which was over R1000 which I could not afford at the time. They recommended I wait the 6 months required to downgrade and once I downgrade then cancel as it will then cost less at no point mentioning my membership will cost double in December. Now when I call head office to query the double debit they tell me to cancel will be over R2000! How is it legal to debit double the amount agreed to without any prior communication with the owner of the account? Can they debit repeatedly as long as the amount is the R399? I would like a phone call from Planet Fitness correcting this issue as there was a breach in contract as no contract was ever sent to me until this incident occurred.