"The agreement was reached on the phone and Hanover proceeded to renew on 2 November 2007 on that basis," Gedye said.
He said the matter was of "pressing importance" given the FMA case.
"With the directors of the three Hanover finance companies now facing substantial civil claims from the FMA, a proceeding live in this court, the extent of cover available under the 2007 policy for both claims and defence costs is a matter of pressing importance to both parties," Gedye said.
The FMA is suing six former Hanover directors and promoters over allegedly misleading or untrue statements made in company prospectuses.
The FMA is seeking compensation for investors who put $35m into Hanover Finance, Hanover Capital and United Finance between December 2007 and July 22, 2008.
The market watchdog is also seeking penalty orders against the defendants, and if the claim is successful, the former directors and promoters could each face fines of up to $5m.