The following protocols are to be observed when entering clients' surnames in the Surname field:-
(a) where applicable hyphens without spaces are to be used;
(b) where applicable apostrophes between letters are not permitted;
(c) spaces between letters are not permitted;
(d) commas or full stops are not permitted.
Links
[1] https://clik.dva.gov.au/user/login?destination=node/18116%23comment-form