[…] Visa and Mastercard moved this past week on the news that they are facing regulatory action in the United Kingdom following a payments watchdog’s investigation. As reported, the Payment Systems Regulator (PSR) is considering “remedies” for the two companies amid allegations the card market is uncompetitive. Mastercard emailed a statement to PYMNTS that countered, “We disagree with the findings in [the] report, which continues to underplay the true competitiveness of the payment industry and our ongoing innovation and investment into security and the consumer experience.”  Visa shares slipped 4.8%; Mastercard’s stock lost 5.2%. […]