First name: [ANN]
Last name: [SMITH JONES]
Seems easy enough, right? They don't have one big field for [ANN BETH SMITH JONES] and then try to guess what name is forename or surname.
Some systems don't like hyphens, or don't like spaces, or appear to accept them but silently drop them kludging the two names in SMITHJONES.
Add the 'scunthorpe problem' and things get even more frustrating.
One of the Google feedback pages declined my feedback because my (legitimate, linked to my Googlemail account) email address and name contains "Cocks".