The Electoral Commission said 0.25 per cent of people who went to polling stations were unable to cast ballots because they didn't have the right ID, and "significantly more" than that likely did not show up at all.
"We don't want to see a single voter lose the opportunity to have their say," he said. "We are working to understand the challenges people faced, and will make recommendations that, with the engagement of government and wider electoral community, will support the participation of all voters." Opposition parties accused the Conservative government of trying to suppress the votes of those less likely to support the ruling party.
The government says getting an older person's travelcard requires proof of age, unlike other transit passes. But the discrepancy has brought allegations the change will disproportionately prevent young people -- the group least likely to support the Conservatives -- from voting. Poor people are also less likely to have photo ID than the more affluent.