Gym company they ***** people,be aware people of South Africa

Afternoon hellopeter hope you are well on my side I'm not ok,the gym company in sky city they said to me I can join there gym and I will get assistance inside, they told that they don't have eft payment they only have debit order payment,so I have to bring my bank details so I can join the gym,so while I was inside the gym I only have assistant for one day,so I decided to quit the gym so now they are telling me about the contract that I don't know and I don't understand,so which means those people who make me to join the gym they were lying to me, so please hellopeter help me