Complaint Review: Auravie

I was filling out a K-mart survey and after that they say I can choose a free gift and only need to pay the shipping fee. I chose this Auravie product and they charged me $4.5 for shipping. Then I accidently found out that they kept charging me $97.88 every month for the same "prize". Their customer service refused to make any refund and just hung up on me. I feel sorry for them to work in such a disgusting thief company. How can they sleep at night? I wondered how this kind of company would exist in America and who can protect our customer's benefit?