Unwillingness to assist with Contract Cancelation

I have been trying to cancel my Gym Contract since Feb 2015, Initially they did send me the Penalty fee for cancellation of contract but with no details that I needed for the reference of payment. Ive send several emails after that with no reply. My bank has been debited 4 months in a row with R385 and I'm trying my best to get info for the cancellation process with no success. I will never use 1 of their centres again and will advice nobody to do it. As this Poor service!!