Guide for generating 6-digit verification codes from 2-FA codes

How to get a 6-digit verification code from Two-Factor Authentication (2FA) when Secret Key (32 characters, ex: SCCNPSWGSJCHXXRX42RJSW47APKUTABD) is available.
Please use the Application as:
For IOS:
Authy,
Authenticator,
- Authenticator Plus,
And Android
Authy,
Authenticator,
- Authenticator Plus,
Here, we guide you to the website: gauth.apps.gbraad.nl

Step 1: Click on the button with pen shape
Step 2: Click on the Add button

Step 3: Enter a name to remember in the Account name box
Step 4: Enter the 2-FA code (32 characters) included in the .txt file that you received when you purchased your account

Get Accounts

Step 5: Click the Add button.

Then you will have 6 random digits - every 30 seconds. Your job is to copy and paste those 6 digits into the box when FB asks you to enter the 2-FA code at login. Done