Where a payment order is initiated by the payer, his payment service provider shall, without prejudice to Article 58, Article 74(2) and (3), and Article 78, be liable to the payer for correct execution of the payment transaction, unless he can prove to the payer and, where relevant, to the payee's payment service provider that the payee's payment service provider received the amount of the payment transaction in accordance with Article 69(1), in which case, the payee's payment service provider shall be liable to the payee for the correct execution of the payment transaction.

Where the payer's payment service provider is liable under the first subparagraph, he shall without undue delay refund to the payer the amount of the non-executed or defective payment transaction and, where applicable, restore the debited payment account to the state in which it would have been had the defective payment transaction not taken place.

Where the payee's payment service provider is liable under the first subparagraph, he shall immediately place the amount of the payment transaction at the payee's disposal and, where applicable, credit the corresponding amount to the payee's payment account.

In the case of a non-executed or defectively executed payment transaction where the payment order is initiated by the payer, his payment service provider shall regardless of liability under this paragraph, on request, make immediate efforts to trace the payment transaction and notify the payer of the outcome.

Where a payment order is initiated by or through the payee, his payment service provider shall, without prejudice to Article 58, Article 74(2) and (3), and Article 78, be liable to the payee for correct transmission of the payment order to the payment service provider of the payer in accordance with Article 69(3). Where the payee's payment service provider is liable under this subparagraph, he shall immediately re-transmit the payment order in question to the payment service provider of the payer.

In addition, the payment service provider of the payee shall, without prejudice to Article 58, Article 74(2) and (3), and Article 78, be liable to the payee for handling the payment transaction in accordance with its obligations under Article 73. Where the payee's payment service provider is liable under this subparagraph, he shall ensure that the amount of the payment transaction is at the payee's disposal immediately after that amount is credited to the payee's payment service provider's account.

In the case of a non-executed or defectively executed payment transaction for which the payee's payment service provider is not liable under the first and second subparagraphs, the payer's payment service provider shall be liable to the payer. Where the payer's payment service provider is so liable he shall, as appropriate and without undue delay, refund to the payer the amount of the non-executed or defective payment transaction and restore the debited payment account to the state in which it would have been had the defective payment transaction not taken place.

In the case of a non-executed or defectively executed payment transaction where the payment order is initiated by or through the payee, his payment service provider shall, regardless of liability under this paragraph, on request, make immediate efforts to trace the payment transaction and notify the payee of the outcome.

In addition, payment service providers shall be liable to their respective payment service users for any charges for which they are responsible, and for any interest to which the payment service user is subject as a consequence of non-execution or defective execution of the payment transaction.