Stock broker fee defaults trigger 1% monthly interest, Board recovery powers, and information obligations from members. Regulation 44 preserves the primary liability of stock brokers, clearing members and self-clearing members to pay regulatory fees and confirms the Board's power to recover unpaid fees directly. It mandates a 1 per cent per month interest penalty for fees unpaid or paid late due to a broker's or member's default, without prejudice to other enforcement actions, and requires brokers and members to furnish information or explanations to the Board regarding fees paid or payable.