Unable to delete the work email address from HCM via the REST API.

Hello, I am able to delete a worker's email address using the Fusion Security Console, but I'm unable to do so through the REST API (using Postman). I get the response "You can't delete an email of type Work Email. (PER-1532306)"

This is despite the documentation suggesting I should be able to

Is there a way around this?

thanks