LOGIN BY E-MAIL ADDRESS INSTEAD OF PHONE NUMBER

Sometimes Telegram platform switches user from phone-auth method to email-auth one.
If this has happens then the app prompts you to type your e-mail address when you try to log into your account next time. After that you have to type the same e-mail as your login every time you log into your account, and Telegram sends one-time-code not to your phone number but to that e-mail.

Please note the following:
1. It is Telegram who switches you. Not Plus Messenger. Plus Messenger just displays to user what Telegram server tells.
2. It is Telegram who sends codes to your email address. Not Plus Messenger.
3. You can not switch back to phone-auth method, as far as we know. But we may be wrong: we are not Telegram support.
4. Some details are available here: https://t.me/tginfoen/1481.