Lunar Sleep Misleading offer Nationwide

As a "reward" for pariticipating in an AT&T quality survey I received offers for samples or discounts on several products one of which was Lunar Sleep. As I am bothered by insomnia, I used my credit card to cover the $4.95 shipping charge. I received the sample (which is basically Melantonin) within a few days. Today I received a call from my credit card fraud department asking about and $85 charge from Lunar Sleep. As it turns out this is actually a subscription if you fail to cancel within 14 days of placing your trial order you are immediately billed  $85 for the first order and $85 a month until you due cancel. I admit that I didn't read the fine print of the offer. However, the intent her is fraudulent and others may not have a credit card company as diligent as mine. Once bitten, twice shy.