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.
Players have continuously reported this problem multiple times but until today is still an ongoing problem. I am getting the same problem also and this is kinda unfair that this is a trending problem and is not being addressed at all. Hopegfully it gets fixed and everyone including me gets accepted and paid for the task.