Were get working multiplayer Battlefield bad Company 2 demo ?

were get working multiplayer Battlefield bad Company 2 demo ?

I download PC beta client, but it not work. why ? were get working demo ?Were get working multiplayer Battlefield bad Company 2 demo ?
The battlefield bad company 2 multiplayer demo only worked before the game was released. After the game's release on March 2nd 2010, the service to the demo was stopped. You must get the game if you wish to play, as there are no longer any demos.