Poor Service Received

I have activated my Discovery health account with one dependant on my cover - On application, I chose to pay R1600 on a monthly basis for me and my daughter. <br> <br> This month, Discovery has debited R3110 from my account - I sent a mail requesting reasons why this money was debitted from my account since Tuesday 03 February 2015 copying Evelyn, Mujeeb and also all the email addresses from the Discovery website and no one has responded to my email in a week.<br> <br> This gives me an impression that some companies can vandalize your account in the name of insuring you.