Original post (in french)
Problem : my wife want to buy the full version of a non-FDroid app. I flashed for here lineage-14.1-microG-surnia (’ cause of Bliss) and added Aurora from F-Droid but I have exactly the same problem with my /e/-nougat (unofficial for Moto E 2015 Surnia) with /e/store.
All the microG settings are OK, I added the paycard (Visa) in PlayStore account, with gg-account login…
While touching “Buy” in the app menu, a pop-up answers something like:
“Problem accessing the payment service […] error code: 6”
I found here (2.3) that Yalp (and so Aurora ?) needs:
“A Google account that has previously been authenticated with Google Play […] to be able to use the app”.
She never buy any app nor any gg-“service” with her Visa-paycard before.
Thanks a lot.
PS : newcomers with a first smartphone, r/e/furbished, may have the same issue…