Inter - Milan, December 25, Tickets

So i called a couple of Milan authorized ticket sale offices, they directed me to Banca Popolare Di Milano and Inter Milan Club they told me tickets wont be released until a couple of weeks before the game. Although i found some tickets online best seats (Block S, im assuming its the 300 euro tickets) but they cost around $900 which is way too much. im willing to pay upto 400 euro. I have already bought my plane ticket and hotel which cost me around $4000 and it would be really a shame if i pay all that and travel half way around the world and not be able to watch the derby.

Any help at all would be really appreciated..

Thank You