You paid for F and got J.
Of course you're owed comp.
Also DDFers probably could have found you a routing to YYZ on QF on time 
Dan, it was so stressful. I flew into MEL and started working straight away for 8 days non-stop. I was out of my mind exhausted. Then I finish up in MEL and have to race to the engagement in YYZ.
I'm at MEL on Tuesday morning Australian time and I'm sitting in UA lounge and they keep delaying my flight. Then they finally cancel it once there are no more flights out from MEL to North America that day.
As it is, I got to YYZ BARELY in time to shower and change and show up for the event on time, and that was ONLY shayach because I had already cleared Canadian immigration that morning in YVR. If I would have had to connect in the US and then fly to YYZ, I would have never made it.
This whole ordeal occurred during the witching hours in American time so I don't think I would have gotten so much help.
Anyway, next time, fine I will post on DDF just to be "yotzei" the inyan.
So what kind of compensation do I get from UA? I was gonna ask for the 10k mile difference back. I didn't think I could get more.