Only in case the ticket has been bought in Italy (via OS.com/IT, OS ticket counter, OS call center or at a travel agency in Italy) the following exception is appicable:
The passenger, who has missed his outbound flight or could not take it for any reason, but would like to take the inbound flight as originally booked (without surcharge), has to inform Austrian within 24 hours starting from the time of departure of first outbound flight segment calling exclusively 02-89634296* or using the contact form which can be found on our homepage Austrian Airlines - Contacts. Otherwise we could request a surcharge for transport (balance to the tariff applicable).