Unions have won a non-binding vote at the Labour Party conference calling on the government to reverse its cuts to winter fuel payments.

In an impassioned speech to Labour activists, Unite general secretary Sharon Graham said she “did not understand” how the new Labour government could target pensioners while leaving “the super-rich untouched”.

“This is not what people voted for. It’s the wrong decision and it needs to be reversed,” she told the hall.

Addressing the subject in his conference speech on Tuesday, Prime Minister Keir Starmer said he understood people’s concerns but that he did not want to “risk” the public finances.

He added that “stabilising” the economy was “the only way we keep prices low, cut NHS waiting lists and secure the triple lock so that every pensioner in this country will be better off with Labour”.

The vote had originally been expected on Monday and threatened to overshadow Chancellor Rachel Reeves’ speech.

However, in a move the Unite union labelled an “outrage” the vote was shifted to the last day of the conference, when many delegates had left the conference.

On Wednesday morning, campaigners staged a protest in the conference exhibition hall with supporters of Unite’s motion chanting “save the winter fuel”.

Addressing the conference hall, Graham said the Labour government of 1945, which came to the power at a time of high public debt, had not talked about cuts or austerity but acted to make “lasting change” and “built an NHS on the back of a crisis”.

She contrasted that with the current government saying: “People simply do not understand, I do not understand, how our new Labour government can cut the winter fuel allowance for pensioners and leave the super-rich untouched.”

One Labour member Maggie Cosin argued against the motion saying she did not need the payment and the money could be better spent elsewhere.

“Every single year, £200 comes into my bank account and every year I go and buy stuff for the food bank with it,” she told the conference.

The motion, which was passed by a show of hands, also called for a wealth tax and an end to the government’s self-imposed rules which prevent the government from borrowing money to invest

About 10 million pensioners are expected to lose their payment this winter, but supporters of means-testing say the payment is not needed by many.

In her conference speech, Reeves also defended her decision to cut winter fuel payments for many pensioners ahead of her first Budget on 30 October.

She said: “It was made clear to me that failure to act swiftly could undermine the UK’s fiscal position with implications for public debt, mortgages and prices.

“And so, I took action to make the in-year savings necessary.”

The motion to reverse the decision was put forward by Unite, one of the country’s biggest unions, and seconded by the Communication Workers Union (CWU), which represents postal workers and the banking sector, among others.