Not permitted subscriptions added/ money taken out without permission

4 months back,I took a medical aid plan with Discovery believing they were the best and most reliable in the business however, the call center agent despite my refusal, added on a Vitality subscription and I also never made aware of any trial run reaching its end. In the 4th month when I called in, I was than told I have an additional subscription and Discovery was not taking responsibility until I wanted to take it further. I also than promised a refund within 7 days. Discovery still never credited nor did they refund anything. Don't go on word of mouth. They don't give a damn after their sale. My emails are all getting ignored. I've received pathetic service regarding this matter.