Everton have dismissed claims that the club's ballot over their proposed new home in Kirkby is flawed.
The club said a "minor problem" which sees 380 fans who have season tickets and own shares get an extra vote, will be dealt with by the Electoral Reform Society.
Club spokesman Ian Ross said: "A small number of those fans have registered for their season ticket with a slightly different version of their name to the one they used to buy their shares.
"The Electoral Reform Society's computer has not picked this up. That is why they have been sent two ballot papers.
"They are aware of this and will deal with the duplicates when the papers are returned."
The club wants to know if supporters accept what Everton's chief executive Keith Wyness called the "deal of the century" to move out of the city and go to neighbouring Knowsley.
Anything above 50% of the vote will decide the matter either way.