Bill Shorten has accused the Coalition of a “disingenuous” and “lazy” decision on NDIS reforms, after the opposition proposed to team up with the Greens to delay a bill set to save at least $15m a day.

But the minister for government services’ plea to pass the bill before parliament’s winter break has been rebuffed by the Greens leader, Adam Bandt, who said it was “appalling” Labor wanted to make “cuts to services” to disabled people.