Marriott is offering 500 free points simply by following them on Instagram.

In order to receive your 500 points:

1. Follow Marriott Rewards on Instagram
2. Click on this link that is in their bio page.
3. Enter the email address linked to your Marriott Rewards account.
4. Receive your 500 bonus points.

You must do the steps above by June 21st in order to receive your points.