Visa working hollydays

Bonjour,

J’ai fait une demande de Visa sur le site Australie Australia, il m’a demander d’imprimer une lettre concernant les conditions du Visa, le problème c’est qu’a ce jour j’ai une notifciation me disant :

Your application cannot be decided unless you provide a supplementary declaration to the Department in relation to your visa application.

Please refer to the separate notification from the Department in relation to this requirement.

If you have not received an e-mail or letter regarding this requirement, please contact the Department by selecting the Contact the Department link on the Application Status Page.

Where you have received your separate notification, please respond to the Department as per the instructions in that notification.

If you have not replied within 28 days of first receiving a request for this information, a decision may be made on your visa application based on all the information available to the Department at that time. You are considered to have first received a request for this information:
at the end of the day we first requested the information by email;
or where you have not given us the authority to communicate with you electronically, within 7 days of a letter being sent to you

Que dois je faire? merci