Brighton and Hove City Council has told postal voters in Telscombe and Peacehaven to destroy green ballot papers after a printer error.
Everyone registered for a postal vote for the town council in these two areas have been sent green ballot papers for Lewes District Council by mistake.
But the error was spotted in time and new packs with the correct ballot papers for the town councils are hurriedly being issued.
Penny Thompson, chief executive of Brighton and Hove City Council and returning officer, said: “There has been a printer error which we discovered in time for new packs to be sent out to voters.
“We apologise for any confusion and we are working tirelessly to ensure the 2015 counts are safe.”
Lewes District Council said that “Brighton and Hove City Council have notified us of the printer error and we will work with them to inform our residents of Peacehaven and Telscombe that they will be issued with the correct town council ballot papers as soon as possible.”
“Voters need to make sure they use the latest pack to vote. If you have a green ballot paper that is headed Election of Councillors to Lewes District Council, this is incorrect and should be destroyed. You should only use the ballot paper headed Election of Councillors to Peacehaven Town Council or Election of Councillors to Telscombe Town Council.”
No one can vote twice in the same election.