This website is fraudulent.
I had a charge I did not recognize on my statement from these folks. Luckily I caught it and my bank was quickly able to identify it as fraud and refunded me while also cancelling my card.
The site is very suspicious. It asks you to log in and give your credit card information in order to cancel your service without every specifying what this supposed service is.
Stay far away from these folks and certainly do not give them any of your credit card information.