[Solved] Google Play won't recognize test users

Hi!

Re-integrating Unity IAP after IAP system redesign. We have products that users are currently owning so we know the system works. In the previous iteration, the testing worked as well.

This time I can't seem to set up test accounts properly:
1. Created brand new gmail account.
2. Added it in Google Play Console > Settings > Manage Testers > "my testers list" while logged in with owner.
3. Created Alpha release.
4. Made sure the address is still in that release's testers list.
5. On an Android device, removed all accounts.
6. Added the new account and installed my game.
7. Opt-ed in with the link provided by the alpha release.
8. After some time, got an update notification to update to alpha version.
9. Running the game, trying to buy an item with my existing UI
10. Google Play window keeps asking for payment method, instead of showing "test purchase" notice.

What am I doing wrong? Please help.

EDIT: I read somewhere you have to have a payment option set up even for test purchases. I added one now but it's still trying to charge me instead of letting me buy a test purchase with no charage.

EDIT2: Well, turns out you not only have to add test users like I did in stage 2 above, but also to Google Play Console > Settings > Account Details > Licence Testing > Gmail accounts with testing access... NOW it's working.