Google Points is a rewards program introduced by Google Play.
To sign up, please check this link.
How do I earn points?
You earn points when you buy in-app items, apps, games, and more with Google Play. You can learn more by following this link.
How do I use Google Play Points with Playrix games?
To get the coupon and use it in your game, please follow these steps:
1. Open Google Play Store app on your Android and press the menu button (3 horizontal lines left of the search bar).
2. Choose Play Points.
3. Next tap the tab “Use” and scroll down until you find the coupon that you want to spend your points on. When you find it just tap it and then confirm by pressing “Use Points”.
4. If you want to use your coupon now, select “Open App” and you’ll be able to make a purchase in the game, otherwise just select “Ok” and use your coupon at a later date. Any coupons exchanged with points will expire after 12 months.
5. Keep in mind the discount will not be visible in the game until you get to the last step of the purchase where you get the breakdown of your charges and you see the applied discount before you press “Buy”.
Are you having trouble using your points?
Please read this article on fixing problems with Google Play Points and try the steps suggested there.
If the article above was not able to resolve your issue, please contact Google Support directly through this link.