Supreme Court remits £14bn class action against Mastercard back to Competition Appeal Tribunal for reconsideration of certification

Earlier today the Supreme Court handed down its hotly-anticipated judgment regarding the certification of an opt-out competition collective action brought by Walter Merricks against Mastercard. The claim is seeking £14bn in damages on behalf of some 46.2 million UK consumers, in respect of losses alleged to have resulted from the use of anti-competitive multilateral interchanges fees.

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