The post office is found on aye de la Republique . Its working hours/days are 8am-6pm Mon-Sat , 8am-12 . 30pm Sun Sep-Jun , 7 . 30am-1pm and 5-11pm Mon-Sat Jul , and 9-l1am Sun Jul and Aug . For any maps or inquires , you can visit one of headquarters of the Office National du Tourisme Tunisien (ONTT) . If the need calls for the Tunisian police , dial 72 280 079 or head to the police station at aye Habib Bourguiba