I can’t use if face at Citi bank apps

Does your Face ID work on other apps or to unlock your phone?

If so, that is an issue with the Citi Bank app.

If Face ID has stopped working altogether, then see the following article on how to fix it.

Click on this link to learn how to contact an app developer.

How to contact an app developer - Apple Support

Click on this link to learn how to fix an issue with your Face ID

If an alert says Face ID has been disabled on your iPhone or iPad Pro - Apple Support

You can try this link as well for resolving Face ID issues.

If Face ID isn't working on your iPhone or iPad Pro - Apple Support (AZ)