Cannot choose google account for billing or license check

Describe the bug
When using in-app purchase on license check, it is not possible to choose which google account to use

To Reproduce
Steps to reproduce the behavior:

1. Install an app with in-app purchase on license check (tried with BeforeLauncher : com.beforesoft.launcher and Balance : com.elevatelabs.geonosis)
2. Try to check license or buy something
3. the popup for payment appears, with an account selected but nowhere to select another. Or "billing result with a null purchase list" error for license check

Expected behavior
A way in the popup or in microg to select which google account to use

System
Android Version: 13
Custom ROM: /e/OS 2.0
MicroG : 0.3.1.240913-10

Additional context
I purchased an app on another google device, couldn't have it detected in-app on my /e/os device
Tried another app with in-app purchase (balance meditation), there i saw that the account used to buy is not the one i intended.
I removed the other accounts and TA-DAAA the license check works

Start by reproducing the in-app purchase and license-check flows on Android 13 with microG 0.3.1.240913-10, using the BeforeLauncher and Balance examples mentioned in the issue. Trace how the payment popup selects an account and how license results are returned. Done means users can choose the intended Google account and purchased licenses are detected correctly.