I have a huge problem with two factor verification for Apple ID. I decided to install El Capitan Public Beta on my second Mac. When it was installed it offered me to turn on this two factor verification for my Apple ID. So I accepted it. Later I decided to bring my Yosemite back and delete El Capitan's Public Beta and then I got a trouble. I couldn't sign in with iTunes on all my devices because it showed me an error "Error description not available". So I went to Apple ID managing web site trying turn two factor verification off but it started asking for verification code which I couldn't receive. So I asked it to sent an SMS or call to my phone which it asked before. But I didn't receive anything. After that I realized that that's all because two factor verification is not available for my country (Ukraine) yet, but why was it offering me that then. So I don't know what to do with that now. I still don't have permission to my iTunes, AppStore, Apple Music. Please help with my problem.
Hi Rhombus,
You need to turn it off using the link at the bottom of the email you got from Apple when you accepted the offer to turn it on. You'll may have to check your AppleID email address and also your rescue email address to find it.
I've highlighted the relevant section from the TFA Support page for you:
"Can I turn off two-factor authentication after I have enrolled?
During the public beta, you will be able to turn off two-factor authentication using a link at the bottom of your enrollment confirmation email. Clicking the link will restore your Apple ID to its previous security settings, including your previous security questions. This link will be active for two weeks after you enroll in two-factor authentication. Please note that your enrollment confirmation email may be sent to your Apple ID email address or your rescue email address."
Max
