My P4P+ crashed for unknown reasons a few months ago in the country outside of Perth, Australia. Sadly just out of guarantee. Our initial investigation revealed 2 short flights, weeks apart, and many months before I purchased the drone which has led to the suspicion that I might have bought a rebuild? dji Australia simply avoid responding to repeated requests to my query, as well as my request for their official findings on the cause of the crash. I am at my wits end and considering legal action. Any advice out there on how to proceed?