To refresh 2FA:
Log in using this link: https://identity.accessacloud.com
Click Add Authenticator app.
A QR code will be shown.
You will need to scan that QR code to connect their authenticator app.
When enabling this option, your user is asked to scan a QR code with the authenticator application. Then the user is provided with a code to enter.
On the preferred option, click Add authenticator.
Take note of the backup codes.
Confirm you understand the use of backup codes then click Enable Two Factor.