Supporters of the child discipline law as it now stands are urged to complete their referendum postal ballots and mail them before Thursday of this week, August 20, in time to be counted when voting closes on Friday evening.

"Voting Yes remains the positive option for this referendum," says Deborah Morris-Travers of the Yes Vote coalition.

"A Yes vote supports children, good parents and the evidence published during the referendum lead-up that shows New Zealand parents are rejecting physical punishment as a 'good parenting' option.

"No one should be surprised that the No vote campaign is preparing a swanky hotel celebration to celebrate a hollow victory on the slanted and confusing question put to New Zealanders in this referendum," says Ms Morris-Travers.

"The question was worded to engineer that outcome.

"What they didn't expect was to be given a run for their money by the Yes vote campaign, which has found support throughout the community, especially among the hundreds of frontline voluntary and non-government agencies that work with real parents and real children every day of the week."

Ms Morris-Travers appealed to supporters of the law who are abstaining from voting to think again.

"We all agree that this referendum is a waste of money on a bent question, but it is the democratic process in action. Only by voting can you truly participate and make a positive contribution for New Zealand's children."