When you get the code, enter it on the screen and click submit. If you did not get the code on your mobile phone, please click the Resend OTP button (once every 20 seconds).
Two-Factor authentication allows you to have an additional layer of security to your account.
You have to have your phone number verified in order to use SMS 2fa.
If you are unsure about how to verify your phone number, please read how to verify a mobile number guide.
To enable SMS 2fa simply click the "enable 2fa via SMS" button on the settings page. Then you will be asked to enter the one-time six-digit passcode was sent to your phone.
Your account will now have 2fa enabled. Each time you log in you will be required to enter a one-time passcode sent to your phone.