As @blackfive460 and @harrrrrry say, this one is known to us, but is proving to be a tricky one to solve at the moment. Watch this space...
I seem to remember this being mentioned elsewhere -- it seems to be an intermittent problem.
Have you tried refreshing the screen? I'm seeing https://community.giffgaff.com/d/33068087-how-she-learned-to-deal-with-an-unfortunate-name correctly attributed.
harrrrrry oh yeah when I refresh, the issue disappears.
That's not to say whatever the bug that causes it doesn't need to be fixed though, is it?
It's a known bug that's been around for a while.
When I raised it via a report a while ago I was told it was being looked at.
Intermittent problems are always the hardest to fix.