"... no annual fee EVER" (stated three times).If you think "… for life" is dangerous, then what would you call the word emphasised in capitals "EVER"?
Here's an even earlier iteration of what became the Signature/Platinum FFFL cards from circa 2006. Look at the wording on this bad boy!
View attachment 474336
Can't be an unintentional drafting mistake can it?
"... for the life that your account remains open".
Why hasn't NAB unilaterally closed these accounts?
NAB has had several years to do that since taking over "Citibank’s consumer business operations in June 2022".
NAB has surely formed the view that there has to some risk to it where it unilaterally closes these accounts.