AdMob pin code, where, when and how to get it?

Question

Android

Previously, I did not encounter sending / receiving mail (except for e-mail xD), so I had questions about the pin code that google sends by mail to confirm the AdMob account.
Please explain what and how.
I note that before they sent me the City and street (+ postal code of the city), but not the house / apartment (I registered them only after sending)

Answer 1

After a month, it will be possible to request a second PIN code to a different address.
The letter itself goes very slowly to Russia, at least a month.