A help from fellow Madridistas

Hi, I am a Madridista from Serbia looking to purchase tickets for Classico at the Bernabeu (in La Liga, the one scheduled for March 2013), but I was unable to find any contact e-mail on the official website to enquire about the purchase. Any of you guys know whats the best way to find out the earliest date I might make online reservations and the price for the tickets? If I understood correctly the official website usually has next 3 upcoming games listed which would mean I can get tickets through it only a couple of weeks before the game?

Here's an email. Might not be the right one though.

legal@ticketmaster.es

http://www.ticketmaster.es/nav/landings/en/legal/condiciones-generales.html

Doubt you would be able to purchase them now, considering the draw hasn't even happened yet.