In my country nowadays you can’t even contact companies and services through regular phone number, you gotta message them on Whatsapp, and I mean, you use Whatsapp to talk with the guy from your neighborhood that fixes roofs to international banking institutions.

Proton has servers in 127 countries, including Cuba, Russia, Venezuela… do they all count as ties?

I’m all pro Age Verification, the good old “If you are over 18 click yes”

Well, this acc here, and several others I use, were created on free Proton email without giving them any contact information.

What?
I’m kinda surprised that any email would ask you to have a previous email to be able to create account… Proton surely didn’t for me. The only way they could require identifying verification would be by demanding a cellphone number, because you can lie about everything else, hell, if you have an online service for that you can lie about that being your phone number as well.

They can’t read your emails though, Tuta uses zero-knowledge encryption, it was something else that got you flagged. Did you send a lot of consecutive emails?