The New York Attorney General’s office is reviewing a report suggesting that a charity formed to combat breast cancer may have misspent thousands of dollars in donated money.

In addition, at least one major donor to the Big Bam Foundation, the San Francisco Giants baseball team, has decided to withhold thousands of dollars it was to donate to the nonprofit organization while it conducts an inquiry of its own.

The New York Sun reported last month that Big Bam, which has received more than $1 million in tax-exempt donations since it was established in 1999, spent thousands of dollars on telephone calls to a telephone astrologer, dry cleaning, trips to Hawaii, and a romantic getaway to the Caribbean. The transactions were included in bank records provided to the Sun by former volunteers. In addition, tax records on file for the years 2001 and 2002 showed all the money raised by the organization went to management and administrative costs, and none went to services.

In the past year, the Big Bam’s fundraising efforts have been assisted by Major League Baseball; the city’s public advocate, Betsy Gotbaum; a star of the New York Giants, Tiki Barber, and an actress from “Sex and the City,” Kim Cattrall.

A spokesman for the California attorney general, Tom Dresslar, told the Sun yesterday his office received a complaint about the group’s activities and referred it to the office of New York Attorney General Eliot Spitzer. Brett Maione, a spokesman for Mr. Spitzer, confirmed his office is “taking a look at the complaint.” But he declined to comment on whether his office is conducting an investigation, or when it first heard of the allegations.

A spokeswoman for the San Francisco Giants, Shana Daum, said, meanwhile, that team officials met with Big Bam after the Sun story and decided to withhold, for now, $10,000 that was to be given to the charity. The Giants already gave the charity more than $60,000 raised in the past two years by selling puka-shell necklaces. Jerome Williams, a starting pitcher, has been wearing a puka-shell necklace since his mother died of breast cancer. The Giants contributed an additional $50,000 to Big Bam through the team’s community fund.

“They have provided us with background materials and we are in the process of reviewing them,” Ms. Daum told the Sun yesterday. “There are very serious allegations here, and we take them very seriously.”

The founder and director of Big Bam, Janice Bonadio, did not return calls for comment yesterday. Last month, she said she reimbursed the organization for some expenditures that were questioned and that she was reviewing other records with a new board of directors and accounting firm. Tax records for 2001 and 2002 were incorrect and would be resubmitted to the IRS soon, she said.