For example,
Let's say I have 2 play store accounts signed in on android:
Event 1: I sign into the app using alice@g, and then make a payment in the app using the Google Play Payment Method (GPPM) associated with alice@g's account, and which is then assigned order: GPA.111...
Event 2: I then delete the app's data in settings and remove then reinstall it on the same device, but sign into it using bob@g. I then make a payment in the app using the GPPM associated with alice@g (since it is available and already on the phone), which is assigned order: GPA.222...
My question is (under the assumption that the app is not given the unique device id) for Event 2, is there anyway for the App-admin to associate bob@g's login with the alice@g login (for example, does the GPPM send the app admin an e-mail address such as alice@g or an id, such as gppm-id-alice, or gppm-randomId-associated-with-alice) or is each payment with GPPM fully anonymous?