Charged for cancelled account

Hi<br> <br> I cancelled my membership sometime last year and paid the cancellation fee. I was then called by the head office and offered a 3 month free membership (as a retention method) and was told that I'd be contacted in January 2015 and asked if I wanted to sign up again. During the \3 month free period"I never went to gym and was never contacted in January. However an amount of R332.50 was charged to my account in January and February.<br> <br> I have tried calling the head office customer number on numerous occasions but the lines are always busy. Please assist<br> """