It was pandemonium at the polls as a queue of up to 200 people meant some cast their vote 55 minutes past deadline.
A formal complaint has been lodged against Milton Keynes Council after a polling station in Broughton Pavilion made voters from two districts queue at ONE desk.
Despite chaos peaking at 5pm, it took another four hours for extra staff to be drafted in – but not before many had given up on voting.
Slamming the council for its mismanagement, ward councillor Sam Crooks said: “This was an astonishing mistake by the council who got its figures wrong.
“Its bad planning and inaction prevented some people from voting which is not acceptable.
“We should be grateful to everyone in the queue for their good humour and patience.”
Volunteers manning the Broughton Gate and Brooklands desk struggled to cope with the demand of voters on one single desk, while Broughton had half the workload.
MK Council has apologised for the inconvenience caused
A spokesman said: “We were made aware of a problem with queues and responded by providing more staff at the Broughton Pavilion polling station.
“All voters who were in the queue by when polls closed at 10pm were able to vote.
“We have already reviewed the arrangements at this station and changes will be made to avoid difficulties in future.”