VIC what is the most effective way to get a resolution to a complaint about water damage from McDonalds don to my property?

[nate]

McDonalds are ignoring my mulitiple attempts to discuss my complaint on many occasions. I would like to know what is the most effective way to get a resolution or response to a complaint about water damage from McDonalds done to my property?

WATER ACT 1989 - SECT 16​

Liability arising out of flow of water

 

[Rod]

Solicitor's letter followed by inevitable court action.

Doubt McDonalds will pay much attention to anything outside of court.