Cover will only be provided under your DBI policy, if your builder has died, disappeared or become insolvent (or in some circumstances if your Certificate of Insurance was issued after 1 July 2015 and the builder has failed to comply with a VCAT or court order). These are known as "policy triggers".
For disputes involving your builder, you can contact the Building Information Line on 1300 55 75 59 between 9.00 am to 5.00 pm, Monday to Friday (excluding public holidays), for free building information and advice. You can also access helpful information on resolving building disputes on Consumer Affairs Victoria's Building disputes, defects and delays page.