Trust grants administrator Jeanette Voss, who has worked for the trust for 20 years, said it was "humbling" to see people giving back.
"We had one gentleman give his cheque back every year for a number of years," she said.
The trust pumps $9 million into the community each year.
Foodbank manager Nikki Goodwin said the appeal had raised more than $70,000 worth of cash and food as of this week.
She was "delighted" to hear the trust would donate a further $2400.
"That's just gold," she said. "We need those cash donations to spend on food supplies."
Food was already being distributed to the needy, she said.