But DA leader John Steenhuisen predicted no single party would win an outright majority, creating an opening for his alliance of smaller parties.After voting in his home city of Durban, Steenhuisen said “for the first time in 30 years there’s an opportunity for change in South Africa”.Voters will choose the 400 members of the National Assembly who in the coming weeks will then choose a president from among their number. Full results are not expected before the weekend.