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

I CURRENTLY HAVE 4 TICKETS FOR THE USA v GHANA GAME 50, I AM LOOKING TO SWAP TICKETS FOR ENGLAND v GERMANY GAME 51, ALSO HAVE 2 TICKETS FOR GAME 58 QUATER FINAL, I AM LOOKING TO SWAP FOR GAME 59 QUATER FINAL.