Dear Eric,
The thing is that i am from Serbia, and Serbia still do not have Official Support for Apple devices.
All the links You provided are not helpful, as this way (through Apple direct question to Support), should be of help in the first place.
The other thing You mentioned "Without proof of your identity via security questions and other carefully selected criteria, Apple Support can't help you reset a password or perform any other actions on your account. These policies are audited and reviewed on a regular basis." I would very much like to answer Security questions, but Apple doesn't give me that option anywhere.
I think the only way is that someone from Apple Support calls me or contacts me, and i explain the problem, and we fix it right away, as through these Apple Support links is 99% impossible, and my iPhone is probably forever useless.
Thanks.