"He could see that I needed to be helped and especially when you live by yourself and you're 86, you think at least someone cares about me."
Mr O'Hara said he was over the moon to win.
"I didn't expect any recognition for it. She just seemed that she wasn't quite herself," he said.
"I would hope anyone would do the same for my mother if she was in a similar position."
The second winner was Hayley Inder, who went to extraordinary lengths to secure new flights to Bali for bride-to-be Julie Millar.
The bride and her wedding party booked six flights through Air Asia before the airline pulled out of the New Zealand market, just a few months before the big day.
"It was lovely to win the award. I was really pleased to help Julie out because it was a stressful time and she had different people coming from different places to be there for her wedding," Ms Inder said.
Mrs Millar said the support was invaluable.
"Hayley was professional throughout the whole transaction and happy to take calls, visits and emails from me and my family," she said.