Settings> Learning Language> Reset or remove languages.
This was the 1st thing I did and it does not work. Old score still appears :(
Ah, I think you can't reset your total received XP, but you can reset your levels. Hope this makes sense. But if the 631Xp doesn't bother you in any way, you should be fine.
Yep, Indeed, TL---
I wanted to reset my score to make sure that all my points were received only for my dutch progress ! :D However, I still don't see how to do it...