Absolute worst customer service !!!!

I decided to enquire about a gym contract about 6months ago, I visited the gym and spoke to a consultant who at the time seemed very helpful. He convinced me to sign a contract and so I did, everything was done in a rush he did not explain the terms and conditions adequately to me. I was told that they would be in contact with me as they had all my contact details. My membership was approved without me paying a joining fee and without me purchasing a membership card to access the gym. I then lost my job a month later so there were no funds in my bank account therefore they had 2 or 3 unsuccessful payments from me and so they handed me over to credit works and my name was put on to ITC and I am now Liable for R6700 they did not make any kind of contact with me to let me know I was going to be handed over the only reason I found out about all of this is due to the fact that I phoned the gym and asked if my membership was successfully approved, only to find out that such drastic actions had being taken against me without my knowledge. I have not being to the gym to use such facilities ever!! I am absolutely furious that there was no contact made to me by the gym.