Please note usernames are only for people who are under 13. Username can't be changed. Display names are for people who want to do anything public on a ±«Óãtv website or app. Display names are shown when you're signed in on the website or on the ±«Óãtv iPlayer or ±«Óãtv Sounds TV app. Display names can be changed in your ±«Óãtv account settings on the website.Ìý
Check out the guidance below as you may be able to fix the problem yourself right now:
What’s the difference between a username and a display name?Ìý