(1) Where a payment order is executed in accordance with the unique identifier, the payment order is deemed to have been correctly executed by each payment service provider involved in executing the payment order with respect to the payee specified by the unique identifier.
(2) Where the unique identifier provided by the payment service user is incorrect, the payment service provider is not liable under regulation 75 or 76 for non-execution or defective execution of the payment transaction, but the payment service provider -
(a) must make reasonable efforts to recover the funds involved in the payment transaction; and
(b) may, if agreed in the framework contract, charge the payment service user for any such recovery.
(3) Where the payment service user provides information additional to that specified in regulation 36(2)(a) or paragraph 2(b) of Schedule 4, the payment service provider is liable only for the execution of payment transactions in accordance with the unique identifier