Did not cancel my policy as requested

At Feb 2015 I cancelled all my products with Discovery that included a healtplan protector, only to find myself being debited AGAIN on the 10th of March, I called in and to my surprise it was never cancelled in first place! So I cancel it AGAIN! Guess what! I got debited again 10 April 2015! Really? So now that's two months I have been paying for a service I no longer use so in essence Discovery is lacking the competence to do what is asked of them. They are very quick to write you up, no problem, but when you want to cancel they have 10 different stories! <br> <br> Long story short, I have debited twice for a service that is no longer in use, and Discovery is failing to cancel the policy twice in a row. <br> <br> I will be demanding my money back!