I can't find out how to cancel my membership toporntube.

Porntube.com advertises as a free adult entertainment service; however, they routinely and without authorization charge credit card numbers ostensibly requested for "age verification purposes only."

The sign-up page reads as follows:

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FREE LIFETIME MEMBERSHIP
18 AND UP. ADULTS ONLY
FOR AGE VERIFICATION PURPOSES ONLY

[SPACE TO ENTER YOUR PERSONAL INFORMATION INCLUDING YOUR CREDIT CARD]

As a FREE member of PornTube, you will gain access to the following features:
FREE Access to Our Huge XXX Movie Collection
Download them or watch them online instantly!
High Quality Videos and a Ton of XXX Categories
Enjoy a variety of genres in sharp resolution.
New Video Updates with Movies Added Everyday!
You’ll be overwhelmed by our ever-growing library.
Plus, you get tons of XXX photos, live cams & more!
It’s an absolute FREE for all here at PornTube!
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I entered my information and credit card for age verification purposes. Upon receiving my next credit card statement, however, I discovered charges of $133.12 which I traced back to their website. These were UNAUTHORIZED CHARGES. I visited their website and noticed at the bottom of the page in small print is a link to "Terms of Service". Upon clicking on those "Terms of Service" I was taken to a new webpage containing many terms including the following:

"Once you sign up, you will be able to view screen shots without charge. If you elect to view or download a movie, you will become an active member of the Service and will be billed every thirty (30) days until this Agreement is terminated by you, as provided herein. Movies that you have downloaded will only be viewable as long as you are a paying Member of the Service, i.e., an active member of the Service."

Nowhere in the sign-up page detailed above are you given the opportunity to click-thru or agree to these terms, and they are obscured behind numerous promises of FREE services. This is a SCAM, and they should be shut down.