It's only for verified users.

Did you not know, in Level 1 Verification you filling your information data (Including your Date of Birth)? They get those data from there, and verify the data they receive with "Level 2 - Verification) to match the data you are filling with the document you are upload is the same.

---

If you not verified you will cannot get birthdays bonus, all user with verify level 2 get those bonus.