"Today's complaint against Pepsi is wholly deficient, not only because the pleadings fail to state a claim, but because the Majority rushed the case out the door before it had evidence to support the allegations,

The US Federal Trade Commission sued PepsiCo Inc. Friday under a rarely invoked 1930s law called the Robinson-Patman Act that bars price discrimination against retailers.

According to the FTC’s complaint, Pepsi has been providing unfair pricing advantages to one of its largest customers—a major big box retailer—while raising prices for competing retailers and customers. Reuters reports that the retailer is none other than Walmart Inc. WMT , citing a source familiar with the discussions.

The commission alleges that the retailer, whose name was redacted in the statement from commissioners, received “unfair pricing advantages” that were not made available to others.

The Federal Trade Commission on Friday filed a lawsuit against PepsiCo, Inc., alleging the company engaged in illegal price discrimination by giving an unnamed "large, big box" retailer unfair pricing advantages,

Although there are millions of options to choose from, Americans have their preferred soda brands, with Coca-Cola, Dr. Pepper, and Pepsi being among the most popular in terms of generated revenue. Related: PepsiCo makes surprising move with irresistible snack food brand PepsiCo is an American multinational food,

In the suit, the FTC said PepsiCo gave pricing advantages to one large chain but did not give those incentives to smaller retailers.