1. Where a payment order is initiated by the payer through a payment initiation service provider, the account servicing payment service provider shall, without prejudice to Article 71 and Article 88(2) and (3), 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.

The burden shall be on the payment initiation service provider to prove that the payment order was received by the payer's account servicing payment service provider in accordance with Article 78 and that within its sphere of competence the payment transaction was authenticated, accurately recorded and not affected by a technical breakdown or other deficiency linked to the non-execution, defective or late execution of the transaction.