I would like to trade my accidentally purchased key for "Warframe: Angels of the Zariman Emergence Pack" from the Game Vault March for any other Steamkey I don't own. Send me a PM. If no suitable steam key is offered for me, I will give away the Warframe DLC key for free. Also PM pls.

I have inadvertently claimed a key for Warframe: Angels of the Zariman Emergence Pack in the game vault. Is there any way I can return it? Or swap with someone for something else?

Everyone else doesn't know this...