You level up by gaining XP, not Soul Gems. Best way to level up fast and get Soul Gems is to play game and complete tasks or carry out contracts! Good luck on it.
Experience and SoulGems are two different matters. reaching 2400 is related to level 6, there is also a case that maybe your friend wants to mention, it means after completing multiple gamehag tasks and earn 2400 then you will be level 6 and it is because of completing the tasks not because of soul gems.
in 3 steps
Choose the game that interests you and play itfor free.
Every game has some quests 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!
when will i reach lvl.6?
how much soul gems do i need?
my friend told me that it used to be on 2400 SG but things have changed now and became a bit harder