
Quoting
flyingron
You need to write a request to compel the disclosure in state district court showing your proof that you sent the request, the statement that the agency did not respond and hence it is considered a denial.
Your other option, since you have a court action that requires the information is not to bother screwing around with the IPRA at all, but have the court you are filing with demand the records either via discovery or outright subpoena. The IPRA is neither necessary nor does it offer the agency any protection on that sort of disclosure.