I have exactly the same message on the same date, obviously a phishing for bank and other details call, I likewise don't have an NAB account. Banks do not use anonymous text messaging to advise people to go to computer sites to enter details. I have advised this site their phone details have been sent to the Aust. Federal Police Cyber Crime Unit.

Text message received. I don’t bank with NAB.
NAB - Your Internet Banking access has been suspended. Proceed to NAB IB https://nab.com.au.accountunlock.services and follow the prompts.