Do you get SG for leveling up?

Yes. But don't hold your breath for them gems

Which level you need to be becouse im not getting now.

Yeah your getting but you dont get gems in first level up.There are 30 lvls and you can get exp from formus fast.

yes. level up for gems.

Yes, you level up for gems, but also by completing various tasks or games

Yes, but not many. I think you get 15 when you get to level 3, and 30 when you reach level 4. But since I am stuck there, I do not know what you get after those levels.Yes, but not many.

si you get morr gems the more u level up

Yeah, but at very small amounts at first. Higher levels get more soul gems.

I got 10 SG for lvl 3. Hope it will be more for next level... But getting XP becomes slower the higher you go...