Unacceptable Service

After months of trying to cancel my membership. On the 23rd of July they confirmed telephonically that it was finally cancelled. I was supposed to be refunded at least 2 months of fees but they never followed up and when I called in they said that they were working on it. Today, they debited me again on an account that I was in the process of closing. Now I'm being charged an extra R115 because the debit order bounced. That's going to be on my credit record! This is unacceptable.