Olympic ticketholders are being warned against using pre-paid cards when the Games kick-off on Friday. Anyone whose debit or credit card does not bear the Visa logo has a simple choice: take cash or load money onto a pre-paid card. This is because Olympic venues will not accept any other type of card, including Maestro, American Express or Mastercard. But City watchdog the Financial Services Authority is worried about the catches on alternative spending cards....Read more here: