Maraekakaho Sports Club president Kate Renton said Arnott had been a personal friend and involved with the club for many years.
She became secretary about three years ago but was now no longer involved with the club, Ms Renton said. It was understood she was also involved in a variety of other local clubs.
Yesterday Arnott briefly appeared and was remanded without plea on bail to appear again on October 10.
At the time of the arrest, police wanted to take the opportunity to remind clubs to ensure they have strict practices in place around the handling of club funds to help prevent this type of offending.
Each of the charges laid against Arnott carries a maximum penalty of seven years' jail.