Question: Independent Citizens' Initiative Save Austria, or Save Austria,  is an anti-EU movement in Austria which was founded by former presidential candidate and pro-neutrality activist Karl Walter Nowak, in the Austrian legislative election, 2008 they received 0.73% of the vote and no seats, it was held on which date?
Sentence (from "Austrian legislative election, 2008"): A legislative snap election for the National Council in Austria was held on 28 September 2008.
Relevant evidence: Yes