I have a typo in my username for my Trailhead account. I have fixed it in my developer account but it hasn't updated in Trailhead.
Is there a way to fix this? I would like to be able to share my badges as I earn them with the correct name.
I can't even find a way to delete the Trailhead account and re-create it with the correct name. I don't want to have to create a new developer account with a new email address just so I can create a new Trailhead account, as this would obviously be very inconvient.

Surely there must be a better way of resolving this?