Fancamps, Fanfests and Ticket Exchange for the World Cup 2014 in Brazil

I have 4 tickets for the semifinal match 30 in Vienna(Cat.3). I want to swap them with 4 semifinal tickets match 29 in Basel. I prefer the same category. It`s also possible to swap only 2 on 2 or 2 on 2 with following matches. Ita-Ned (Cat.2 or 3) game 6 or Sui-Cze (Cat. 3) game 1 I prefer german sp...