Play games
Choose the game that interests you and play itfor free.
Complete the quests
Every game has some quests for which you will receive Soul Gems.
Receive rewards
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
For some reason despite me completing the 20 battles, it still won't accept the photo I sent. It was clear as day and matched my info. Why is that we have to report it being an issue in order for it to be accepted. The same thing happened when I won 5 battles and the next one after that.