I am flying to Perth on Easter Friday and noticed they moved my flight by half an hour and changed it from A330 to B737 
What are my chances of moving to the earlier 2 flights that uses A330? I am flying on getaway fare so I can't even use fly ahead, I am VA Gold if it helps.

What are my chances of moving to the earlier 2 flights that uses A330? I am flying on getaway fare so I can't even use fly ahead, I am VA Gold if it helps.