The Competition Appeal Tribunal (CAT) has today (21 July) ruled against certifying one of the first US-style £14bn opt-out consumer damages antitrust class actions, against payment giant MasterCard, in what would have been the UK’s largest claim.
CAT president Mr Justice Roth ruled against allowing the collective proceedings application on grounds that potentially disparate groups of claimants could not form a single class action for the purposes of this claim, regardless of the means of payments used or the retailer from whom the purchase was made.
