Winner of Gold Coast seat anyone's guess

Queensland opposition leader Deb Frecklington's hold on the job is in doubt as the result of a crucial by-election could be days away.

Just over 1000 votes split the Liberal National Party's Laura Gerber and Labor's Kaylee Campradt in the Gold Coast electorate of Currumbin.

But the count could last days or longer after 570,000 people voted by mail because of the COVID-19 pandemic.

Queensland's Electoral Commission says the official count process can take up to two weeks.

About 68 per cent of the vote had been counted on Monday afternoon with Ms Gerber on 9701 and Ms Campradt on 8528.

It could spell trouble for Ms Frecklington's position as LNP leader if the party fails to hold the blue ribbon seat.

She waited until Saturday night before taking a shot at former Currubmin MP Jann Stuckey, who triggered the by-election when she retired this year.

Ms Stuckey said she made the decision because of mental health issues and bullying within the party.

"This was a tough campaign for Laura and her family," Ms Frecklington said in a statement.

"The unprovoked attacks by Jann Stuckey on Laura has taken an emotional toll on her family."

Ms Stuckey represented Currumbin for 16 years and has said she was cut out of discussions about who would replace her.

In the second by-election in Queensland for the Ipswich seat of Bundamba, Labor's Lance McCallum has almost twice the number of votes than One Nation's Sharon Bell with just under two-thirds of the votes counted.

In the local government elections, 28 new mayors across Queensland have been decided.

Another 20 mayoralties remain too close to call, the Local Government Association of Queensland says.

The level of turnout in the council polls and the two state by-elections is down.

Queensland's premier said on Sunday she would order a review into technical issues that hampered the start of the counting process at Saturday's election.

Annastacia Palaszczuk is "pretty disappointed" as the commission's "one job" is to make sure they can run an election.

The commission said a technical issue with the data feed from polling booths delayed the publication of the preliminary results after the close of polling on election day.

"This did not affect the count process itself or the recording of results from over 1000 polling booths around the state," the Electoral Commission said in a statement.