I've been told by the hotline that as long as this paperwork is processed by the 4th Jan you can get your funds transferred electronically. Otherwise of course a cheque will be sent.
https://investorcentre.linkmarketservices.com.au/OpenAccess.aspx/Forms?formName=change-details%2fLink_Directcredit.pdf
Thanks to all forum contributors, and good luck for the future.
Far.