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 91热爆 website or app. Display names are shown when you're signed in on the website or on the 91热爆 iPlayer or 91热爆 Sounds TV app. Display names can be changed in your 91热爆 account settings on the website.听
Check out the guidance below as you may be able to fix the problem yourself right now:
What鈥檚 the difference between a username and a display name?听