To redeem your coupon code on Google Play:
Tap Pro Subscription in the app.
Tap Proceed.
Under Payment Methods, select Redeem code.

Enter your coupon code.


You may see a pop-up asking you to confirm your subscription.
Follow these steps to cancel your BizCrush subscription through the Google Play Store:
Tap the Google Play Store app on your Android device.
In the top-right corner, tap your profile icon.