No response to refund unauthorised debit order?

I was insured with Oakhurst but cancelled my insurance with them.I then got a call from Sifiso selling me the Gold Club benefit loyalty programme and I told him I wasn't interested.He told me he would allow me to trial it and see if I may use one of the benefits within the month which included fines protect and discount on buying tyres.I told him I will not give him my bank details yet and I will think about it.i never bothered with this and because I never authorised for my account to be debited.After a few months I examined my bank statements and found that they had in fact been debiting a R99 For a couple of months.I called the call centre to explain this and they said they would re imburse all debit orders.First I was assisted and told that my money would be paid back within w 3 weeks later...I call them every week and the operator I speak to says he will ask one of the consultants to call back?Every second day I call and I hear the same story...no one bothers to help