Tuesday could turn out to be an embarrassing day for a score of online retailers, such as Continental Airlines, FTD, and Classmates.com.
The so-called mystery charges that have appeared on some of their customers’ credit card statements will come under scrutiny at a hearing held by the U.S. Senate Committee on Commerce, Science and Transportation.
At the center of the federal probe are Webloyalty, Affinion, and Vertrue, companies that make “cash-back” and coupon offers to consumers and charge them monthly fees to enroll in....