For any queries, you should give priority to the "International" page, or contact us either by phone (+ 33 1 72 95 20 42) or through the secure contact link ("Messagerie sécurisée") of your personal account ("Espace particulier") on www.impots.gouv.fr.
If you still need explanations after initial answers, you can ask for an appointment (either by phone or in our office) :
by phone : +33 1 72 95 20 42 ;
by using the "Contact" button on www.impots.gouv.fr.
Warning : Queries regarding local taxes (Housing Tax, Property tax, TV and radio licence fee) cannot be answered by the Non-Resident Tax Directorate and must be adressed to the local tax office of your property.