Wal-Mart sues Visa
US retailer Wal-Mart has sued credit card firm Visa for $5bn (£3bn).
The BBC reports that Wal-Mart, which is the world's largest retailer, argues that Visa worked with large banks "to illegally fix the interchange fees and inflate the network fees that Wal-Mart and other merchants pay on Visa charge card transactions".
Those large fees then caused "enormous damage" between 2004 and 2012, the retailer claims.
Wal-Mart is now suing Visa for damages, which it estimates to be over $5bn.
Wal-Mart opted out of a $5.7bn settlement with Visa and Mastercard in December. Wal-Mart and other US retailers, such as Target, objected to the terms of that agreement.
Visa had sued Wal-Mart in June 2013 to prevent the firm from filing a lawsuit.
Visa declined to comment on the lawsuit.
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