yeah, sucks to be you
In the match play, I take it that the Australia games on required. Going with that parameter, it is tough because you then have to miss the Netherlands/Denmark game on the 14th some 300 miles away and the Argentina game on the 22 again about 300 miles away. You should be able to unload those tickets readily. I imagine you are going to the two Spain games, the Brazil/Ivory Coast game (potentially one of the best in the group stages) and probably Mexico/France?
Plus all the knockout stage games.
I am completely jealous, enjoy!