Whitening Fast Ivory White False advertisement of free trial period , Internet

On December 11, 2012 I purchased a $4.90 trial of Whitening Fast on the popular freebie website Zip Nada Zilch. The trial period was supposed to be 10 days and you had to participate in the trial for a minimum of 8 days to receive your referral credit. Today, December 19, (8 days into the trial period ) I called Whitening Fast to cancel my trial so I wouldn't receive any further shipments at the regular price of $79. It ended up that the free trial period on their website, which I didn't use, was only a 7 day trial. My card had been charged $79. They said that they did not offer a 10 day trial period for their products. After much complaining on my part, they gave me a $45 refund back. So, all in all, $34 additional was charged to my account. I am writing this post because this company is using freebie websites to mislead consumers about the length of their trial offers. I did not misunderstand anything when I purchased their trial on Zip Nada Zilch. Stay away from their free trial offers online or offline.