Can't unlock google Achievement

I can't unlock achievement on google play. The player has been authenticated succesfully, I can open achievement ui, leaderboard ui, and the IAP is running well. But the achievement is still locked even though I call Social.ReportProgress()
I already make sure that the achievement id is correct, and the SHA1 on playconsole is same with the keystore that I've been using. Also the player email is already included on tester list.

Here is my code :

Code (CSharp):

1.  
2. Social.ReportProgress(HADOK_CONSTANT.achievement_bright_novice, 100.0f, (bool success) =>
3.         {
4.             if (success)
5.             {
6.                 print("BRIGHT NOVICEE");
7.             }
8.         });
9.  

any idea why?