Please follow the steps mentioned in the screenshot given below for the deactivation of your 2FA
STEP-1: Please log in using your credentials.
STEP-2: Please Submit your Google Authentication code and click on AUTHENTICATE
STEP-3: Click on the Settings icon on the top of the dashboard
STEP-4: Then click on the security settings and choose the button for Deactivate of your 2FA
STEP-5: Click on the checkbox(Save the profile, Trade function & Login) and click on the SUBMIT button.
STEP-6: Submit your Google authentication code and click on AUTHENTICATE to deactivate 2FA