I purchased an online book and video and the vender used clkbank to bill me. The process was extremely confusing, there were multiple multiple other offers I had to decline before finalizing my order. Once I declined the last order it didn't bring me to any confirmation finalizing order" screen, it just had some generic window that said your "order has been purchased OR cancelled" What?! Two days later my credit card has fraudulent activity on it. Now I know that this doesn't prove that clkbank provided my credit card information to someone it shouldn't but it doesn't look good either.