The Broward School District has been unable to collect more than $300,000 that auditors say were overbilled by a former supplier of graduation caps and gowns, a new audit shows. The district issued a demand letter dated Oct. 24, 2023, to Chuck Puleri and Associates, the district’s former vendor for Herff Jones graduation products, for $301,489 in October, according to a Jan. 5 letter from .