To link the email, you should take the following steps:
1. Log in to the game from your Android device to the correct account and log in to your account profile by clicking on your nickname in the hangar of the game
2. In your profile, click on the link "use email as an alternative authorization"
3. Please, enter an email address that does not have a registered Gaijin account and click the "bind" button.
Please note that you can only link an email address that does not have any Gaijin account linked to it.
4. After that, you will be informed that you have successfully linked your account to the email address, and you will receive an email with a link, where you can set the account password.
5. Follow the link in the email, choose a secure password and confirm it.
6. After that, you will be able to log in to your account from any platform convenient for you using the Gaijin authorization button, linked email and password.