You will I just did this recently (as posted on the other thread).
I got the NAB Signature Black in April 2021, as there was no annual fee in first year it was an easy 100k points.
I meant to cancel in March 2021, but there was a lot going on and I forgot so it auto-renewed in April and I only noticed when the 25k bonus points hit QFF on 1st May. At that point I stopped using the card and once the points for May spend had posted on 1st June, I cancelled the card.
Much to my surprise NAB refunded $362 of the $395 annual fee, meaning those 25k bonus points cost $33, not a bad earn rate.