It is a total scam! I signed on with my credit card for the trial offer. It was billed to me at $2.95 and came up as $12 on my card. THAT was all I gave authority for!
Subsequently I have been billed several hundred dollars and received no product. My card is being trashed, and being an OAP I cannot pay that sort of money. I have it under review appeal with the card company and gather that this scam is widespread. It takes away any trust for "on line" shopping.