PASCAL > PREPARE FOR BATTLE BUNDLE

Hello! I bought a video card GEFORCE GTX 1080 in Computeruniverse online store. The box did not have any code. How do I take part in the competition the following link: http://www.geforce.com/hardware/10series/for-honor-ghost-recon-wildlands-bundle
P.S. I apologize if not to find such a topic not found.