In 2008 Betfair introduced a Premium Charge for successful customers which began at 20% of the profit over the previous 60 weeks and became as high as 60% for those with more than £250k total profit. In the week after it was introduced, the charge was calculated on the winnings of the customer in the previous 60 weeks and applied to the account as a Premium Charge. Legal opinion is that the Premium Charge was, and still is, retrospective, and therefore illegal, but there is a time limit on claiming which expires on 1st September 2014. To register your claim, send an email to
premiumchargerefunds@gmail.com, stating the amount you have paid in Premium Charges in total. I am not charging a penny for collecting clients for a group action, but you should realise that litigation may cause Betfair to close your account.