Use PayButton API to render Google Pay branded payment button (Google Pay integration being denied)

[TrentStarky]

Is your feature request related to a problem? Please describe.
We are using the pay package GooglePayButton to render our Google Pay branded button. When submitting the app to get Google Pay API integration approval, the app is rejected with the following email response:

Hi,

 
We have an update on your recent Google Pay API integration submission.

 
We need more information about [app bundle]:

 
Your application is using a Google Pay branded payment button but has not implemented the [PayButton API](https://developers.google.com/pay/api/android/guides/resources/pay-button-api) to render it. Please follow the instructions in the provided link to update your integration to use the PayButton API.

 
The PayButton API is now a requirement when using a Google Pay branded payment button. The API ensures:

The button stays consistent across all of our partners’ applications
The button stays up to date with the latest Google Pay branding
The button displays properly across device sizes and applications
Text on the button is localized to the user’s device settings
 
 
Once completed, re-submit your integration again through Google Pay & Wallet Console. If the above feedback cannot be implemented because you are using a dedicated sdk solution provided by your Payment Service Provider or some other reason, please reach out to us by responding to this email. 

 
If you have implemented the API in a pre-prod or staging version of your application, please provide that package name.

 
Thank you for submitting your integration through the Google Pay & Wallet Console. It’s been a pleasure working with you.

Describe the solution you'd like
An option to render the Google Pay button using the PayButton API (or communication with the The Google Pay API Support Team that this is an acceptable way to render the Google Pay button)

Describe alternatives you've considered
We've communicated back and forth with The Google Pay API Support Team for over a month on the issue without any progress and have stopped getting responses to our emails

Additional context

[JlUgia]

What version of the pay or pay_android package are you using? The PayButton API was introduced in pay:v2.0.0 and pay_android:v2.0.0.