Collectible Card Game Headquarters

Every time I start a challenge it automatically goes to the screen that says you lose shows me the card I would have drawn next and gives me the option to quit or continue, if that's the challenge it isn't very good, as you can't win! It is like a learning curve that steadily goes backwards and alludes me. Please help? I'm losing sleep over this one.

Edit by Stassy : Moved to proper section

Hello,

Do you have the latest ML 3.0 version (July 2013)?
Which challenge did you try?
Can you provide the deck you played for the challenge?

You can also check some Challenge mode info in the wiki here :
http://www.slightlymagic.net/wiki/Challenge_Mode

Hi stassy sorry for not responding sooner, unfortunately I had to reinstall the game so I no longer have the deck, I also forgot how to access the challenges, so I'm not entirely worried about it any longer.