Nouvalift Beaute Wrinkle Reducer Ordered a $4.95 trial size and then they charged my account $99.95/month without my permission Las Vegas Nevada

Apparently, I ordered a $4.95 sample for Beaute Wrinkle Reducer.  After receiving the first sample, I continued to receive them in a plain envelope with a 0.5 fl.oz. tube of the wrinkle reducer.  No paper work in the envelope, so I had no idea why I was receiving them.  I finally did some research and came to the relalization that I have been charged $99.95 for the past five months.  When I called they told me that I agreed to this, which I would never agree to paying $99.95/month for a 0.5 fl oz tube of a wrinkle reducer.  I am not that rich.  They told me they would cancel my future orders, but would not do anything about the 5 I did not order and was charged $500.  I asked for a name of a supervisor or the mailing address to dispute and they told me they could not give that to me because of security.  Not sure what that means, but I received no help from the person on the phone.  I don't know where to turn to get a refund for something I did not order.  Please help.

Thank you.