Change login name for app use

[El Win_NL]

Since my login name consists of a space (El Win), it's not possible to use the OSM app. It simply doesn't recognize the space. Is it possible to change my login name, or is there some kind of code that the app sees as a space, like a non-breaking space?

Hope you can assist,
Elwin

[DE XRIST]

Hello mate,
it's impossible to change your name.....but i wonder : my name is DE XRIST...and i also have a space in my name...and i don't have a problem logging in the app....