II generally find NAB are exceedingly good at stuffing things up.
You should have seen the mess they made with that monumental stuff up in November 2010. We had money being sent from one account to another, multiple times. Thousands of dollars at a time. And then, a few days later, they would do some kind of reconcile, and transfer it back again, without warning. This happened multiple times over the month. We did not know what we were going to lose next. And this was for a business account, that pays salaries to people!
I hate the letter they send to people when a nearby Branch closes. Our offices were right next door to a Business Branch, and in the letter we got when that closed, were the lines "for your convenience, the Branch in Hutt Street is available". WT - that Branch was always available, has minimal parking and is very busy, so how on earth is that "for our convenience".
When I went into the Branch that was closing, I said to the teller that I was thinking of changing to a credit union. He said, "Watch out for the customer service, you wont get the same as in a Bank". To which of course, I replied, "You are closing our Branch, how is that Customer Service!". Not much to say to that really.
If the gold card disappears then I will close that account - we have two with the NAB so it will look like a protest closure without disadvantaging us too much.