Hundreds in Stoke-on-Trent sent wrong polling cards
At least 200 voters in Stoke-on-Trent have been sent polling cards for the wrong areas for Thursday's local elections.
The city council said it affects addresses on London Road, Werrington Road and Wileman Street.
People can still vote but not for a candidate in their own area, the authority added.
The coalition-run council said that boundary changes, almost doubling the city's wards, had caused the confusion.
Returning officer Paul Hackney said a total of 115,000 properties, 3,700 streets and 190,000 electors were moved to new wards earlier this year as a result of work carried out by the Boundary Commission.
He said: "We regret any anomalies of this kind. It's important to look at the context of it. Nobody is being denied a vote.
"We strive to get everything absolutely perfectly right, there's no escaping the fact there's going to be one or two anomalies."
Mr Hackney added that he regretted the situation but stressed that people would be voting for candidates that represented the whole city.
"Those people that have been unfortunately subject to these errors, these errors in just a few areas, will be voting in a ward they didn't expect to be voting in.
"Once the election is over we will be reviewing the register and sorting out any anomalies for future elections."
One voter, Mike Hopwood of Wileman Street, said: "I had somebody that I always vote for and I like him a lot, but I can't vote for him now.
"It's an individual choice and you should be able to make that choice with who you want to in that area, but now you can't."
The council has not been notified of any further errors.
Currently, Stoke-on-Trent City Council is run by a four-party coalition between Labour, Liberal Democrats, Conservatives and the City Independents.