Which Credit Card Processor Review Websites Charge To Be Top Rated? Most review sites charge in one way or another. It's one of the many reasons to take credit card processor reviews with a grain of salt. Some sites claim that they only charge for the expense of reviewing the processor, but considering that some of their 'top-rated' processors have a lot of negative information available elsewhere and that they use opaque and expensive tiered pricing, I have my suspicions about that.