I have passed level 15000 but don't receive the reward

I have not noticed a share button. Many years ago there was a way to share your progress on Facebook. I really do not remember how it worked.

@PummyRaj

I have seen the 'Share' button, but I don't know what it does. I assumed it allows you to share your achievements on social media. I actually have the Facebook app installed, so maybe that's why I have this button.