I get the multiple emails.
With that being said, each ingress app is connected to that certain email, and not to the users device email. If a user were to flash another rom, redownload ingress and try to play it again, since ingress needs access to the email account that is registered to that phone, that invite would render useless since its tied to another email.
Since I got my invite, and every time I open ingress app (after flashing a new ROM) it asks for permission to access my email account after I give it permission it goes directly into game play. No prompts or codes.
There is a good reason why they don't send out referral codes anymore as both sides of the game are nearing the 60million mark, making a total amount of players close to 12million. They did it at first to expand both sides since the numbers we're REALLY low.
The referral codes are a thing of the past.
And unless the emails used are registered on your device, the codes will be useless after you uninstall/flash another or anything that will clear data from the ingress app.
Only thing to really do is wait your turn.
These post are useless and only clutter forums since it honestly has nothing to do with XDA
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