Thanks!

Odd, though--because alphanumeric username is the only one that works on my United app login.

I'm concerned about the erratic behavior--sometimes x works, sometimes y--and perhaps you'll get hung up needing to log in somewhere and can't.

Also odd: United cannot seem to remember who/what you are--constantly saying that it doesn't "recognize this device"--though that hasn't changed, not even down to the build of the browser. Not confidence inspiring.