Article L133-10 of the French Monetary and Financial Code
I. – Where the payment service provider refuses to execute a payment order or initiate a payment transaction, it shall notify the payment service user, or make the notification available to the payment service user in accordance with the agreed procedures, as soon as possible and, in any event, within a period which may not exceed that provided for in Article L. 133-13, and shall, if possible and unless prohibited…