I rather enjoy the surname I have for one of my characters and wouldn't want anyone else, by chance, to try and claim it.
I asked the Surname Registration clerk in Solhaven about "Reserving" and this was his answer:
The clerk says, "Reserving your surname will prevent it from being shared, either by you or by others to whom you've given it in the past. It will, however, still be open to other characters on your account. Although this service is not yet available, we will be offering it in the future."
I know I checked this same thing years ago (probably going on 3 or 4 years now). Will this feature of surnames ever be implemented to allow us to have a lock on surnames?