bad bad *********** staff at randburg

In September I send a request to be called online because I was interested to take up a membership with this *** of a company , I was called and everything went well after work I went to their offices in Ransburg square to sign my contract but just before I left when I was suppose to get my tag , the guy at the reception / helpdesk said my ID number was captured incorrectly , I will have to go home and wait for a call for someone to confirm my details and "Enrol " me before I can get my tag and start to gym. I received no calls , nothing I even decided not to go ahead with them anymore fast forward to yesterday , I get a debit order from them one R399 , it bounces because there were funds in my account and then I receive an sms saying my account is overdue I need to pay before it can affect my credit rating now the question is , how is my account overdue when I have not been gyiming and didn't even get a tag , who gave them the go ahead because I was never called to rectify my ID Number I want to cancel my contract because I never even gave them the go ahead as promised they are *********** fools who run to debit people's accounts before making sure that client are actually using their memberships as promised. I will take this to the highest court