Misrepresentation of contract

I had the most horrible experience ever with virgin active...i was offered a deal by a sales consultant at the kenilworth branch in cape town and i thought i would give it a try well i signed up a day before the new month and i was billed for a month i didnt even use,i called them and they told me its procedure, i didnt read much into it till the next month end when i was billed for 2 months and i didnt even visit the gym once...****ed off i called the call centre to cancel the membership and i was told i needed to pay a cancellation fee of R1600...I was then handed over to debt collectors because i refused to pay for something i didnt use at all...i really feel as if these people needs to be shamed for their **************** and exploitation of consumers...I WILL NEVER EVER ADVISE ANYBODY TO JOIN VIRGIN ACTIVE EVER!!!!!! Now im forced to pay for something i didnt use at all...