To pay at Google Play Store with GoPay the first thing you have to do is register your Gojek account. Here’s how: 

• Open Google Play Store the choose Add Payment Method
• Click 'Add GoPay' 

• You will be redirected to Gojek App
• Scan fingerprint/face or enter your GoPay PIN
• Now you can use GoPay as payment methods on Google Play Store 

Then you just need to make sure you choose GoPay as the payment method when you purchase/buy at Google Play Store.  

*Click here to see further information related to Payment Methods on Google Play Store.