Double Debit Still no refund

I have medical aid and life insurance with Discovery. In July 2014 I got a call to move my vitality from life to health I agreed and stated that they should make sure that I am not double debited. In April 2015 I called discovery only to find that I have been paying double for my vitality. I was told that my matter would be sorted and I would be refunded my money. Not only have I had to run around after the people at discovery to see if the matter has been sorted but now there is complete silence from them and I have still not been refunded money for a mistake made on their side! <div><br></div><div><em>(Supplier name changed from Discovery Vitality &amp