Originally Posted by Agent 488

The trick is a marketing technique called "negative option," where customers must say they don't want to join a so-called club or receive additional materials in the future. The details of the ongoing charges are often in small print or can only be found by following a hyperlink. There's frequently a series of pre-checked boxes that most consumers zoom past as they order. Skipping those boxes is key, because leaving them checked ostensibly giving the companies permission to keep charging the card.