The vast majority of card transactions across the UK are made on Visa or Mastercard networks Sign up to our free money newsletter for investment analysis and expert advice to help you build wealth Sign up to our free money email for help building your wealth Sign up to our free money email for help building your wealth Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice The UK’s largest banks are set to meet this week to