it never works for me. i recommend doing all the tasks you need to do on pc. For me, the only good thing about mobile is the system where you watch an ad for 30 seconds and it gives you a soulgem.
Hasn't ever worked for me and I don't even think they accept screenshots as evidence that you completed it like they do for pc ones, which I think is a bit dumb
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some tasks for which you will receive Soul Gems.
You can exchange your Soul Gems for Steam Wallet top-ups, game keys, CS:GO Skins and other rewards.
You know that on Gamehag you can get real rewards for free, right? Join us, complete walkthrough and get your chest!
Well you see, gamehag has no proofs to see if we have completed offers correctly on mobile, since it's not like in pc games you can send screenshots. Anyone actually got it to work?