Is it possible that this is a bait and switch?
"Bait-and-switch is a form of fraud, most commonly used in retail sales but also applicable to other contexts. First, customers are "baited" by advertising for a product or service at a low price; second, the customers discover that the advertised good is not available and are "switched" to a costlier product." -
Bait-and-switch - Wikipedia, the free encyclopedia
Say for example NAB has baited 100,000 people into switching... then after a year or two, NAB removes all the benefits that people switched to get in the first place. Some are outraged, and take their business elsewhere. Lets say 50%. NAB would rely on the rest to either forget to, or be so discouraged by all the admin that they have to go through that they won't bother changing. E.g. Having to go to another insitution to open a new accont, have all their direct debits changed, have their pay directed to their new account etc.
People that went to NAB for this product in the first place, would also be more likely to have set up other accounts with NAB for the convenience of having to only have to deal with one organisation. e.g. online banking, online trading, home loans, credit cards, term deposits etc. The more products you have, the more hassle you have to go through to get out. Yet those that have the most accounts are probably those that NAB makes the most money from. So even if say 50% of the 100k customers that joined because of this leave, NAB is still up 50k customers - and possibly the customers that are likely to generate the most revenue.
Not sure if it is against the law for banks to do this, but what's stopping Comm Bank, Westpac or any other organisation from offering a good product, just to suck people in - only to remove key features from it a few years or months down the track?
I've recommended this product to a number of people, and one friend just signed up two or three months ago. He's very angry now that he went through the hassle of going through the application process, organising all his direct debits, pay etc to sign up... and now he has to do it all over again just to get out to go back to the bank he was originally with. I regret having suggested Gold Banking with him now.