2-STEP AUTH CODES ARE REQUIRED, because without it, PSN often blocks login from another device, and also to save us and your time, so that the seller does not wait until you provide an SMS or code from the mail and you do not wait until the seller will take your order and request these codes.
▪️How do I turn on 2-Step Verification?
Select Settings > Account Management > Account Information > Security > Two-Step Verification>Activate>Select how you want to receive the code via SMS (you can send it to Russian numbers!) or the Authenticator app (you can download it from the Play Market or the App Store)
▪️ Where can I find backup codes now? In the console menu or in the web version of your personal account: "Settings" > "Users and accounts" > "Security" > "Backup codes"> THEIR TYPE OF NUMBERS AND LETTERS OF THE TYPE: 3dGE67, T69Hee, P6yrD2, etc.