Not rectifying wrong deduction as promised

I have been trying to sort this out for months with Frans Tefo. This was a roller coaster of bad service and false information, that I eventually decided to leave Virgin Active in total. So After I cancelled my membership, Virgin Active still deducted R200 with the next debit order amount. I have been dealing with Frans to assist once again to get that payment back. Up until today it has not been paid back. No one is responding on my emails. Please can someone assist? I would be glad to get this over and done with and never do business with Virgin Active again.