How do I change the username in https://wiki.openstreetmap.org?
Topic on Project:Support desk
you have to ask a bureaucrat there (https://wiki.openstreetmap.org/w/index.php?title=Special:ListUsers&group=bureaucrat)
Explanation given
you have to ask a bureaucrat there (https://wiki.openstreetmap.org/w/index.php?title=Special:ListUsers&group=bureaucrat)