My dad never signed up for it and he doesn't even have a blockbuster account. He's 70 and doesn't even know how to use computers. Blockbuster mailed him 3 movies a month ago and we assumed it was just a promotional offer or something and didn't think too much of it. But when he checked his credit card bill today, there's a charge from Blockbuster Online. Should he call the credit card company or bb online to dispute this?