14-DAY MONEY BACK GUARANTEE. If you have decided that the purchased level of membership is not what you have really wanted, you have the right to ask for a full refund during the first 14 days of your subscription. Since BrainKing's higher membership levels contain many features and services which cannot be canceled or returned after they are used, the refund claim is valid only if it is clearly evident that you have not taken advantage of any features or services which are specific for the corresponding membership level.