> Maybe it requires a space in the username field I was curious and thought it may be more likely that the requirement is the first letter must be a capital le

> Maybe it requires a space in the username field I was curious and thought it may be more likely that the requirement is the first letter must be a capital letter. Tried out some combinations and that is the case (pun intended :-) Not sure how I spotted this as being the likely thing, just intuition I guess from doing this kind of thing for long enough. For the OP, my guess at the cause would be a bad regex on username, if it's not intended. Also for the OP, I signed up with a couple of usernames starting dw with matching emails, if you want to delete those accounts :-).