1. Where, in calculating the entitlements due to a participant under [paragraph 1.(a) in Consolidated Requirements Part 2 > General Operational Matters > Central Accounting > Central Accounting System > Settlement of System transactions], the Society has taken into account any amount which is due to be paid to that participant and which is not subsequently paid on the relevant settlement date or any amount which is not due to that participant on the relevant settlement date, the Society may directly debit the accounts of that participant in respect of that amount or make demand for the prompt repayment of that amount. Such participant shall repay the Society immediately on its making such demand and that participant shall indemnify the Society against any loss, liability, charge or expense arising from the crediting or other payment of such amount to its account.
2. Where, at any stage during the operation of a service a participant becomes aware of an inputting or similar or analogous error such participant shall immediately notify the Society of the error. The Society may, where it is practicable so to do, reverse any transaction notified to it as having been erroneously made or of which the Society has itself become aware.