Don't know if this deal is targeted, it seems you just need to register your aa smart card (onecard) but here is the email.
We’re pleased to send you this offer for a four-week complimentary subscription to The New Zealand Herald.
That's a FREE paper delivered to your home, seven days a week, as well as 24/7 access to Premium Content on nzherald.co.nz, for four weeks.*
Premium Content provides full access to nzherald.co.nz and includes the best of our journalism in addition to content from leading global publishers including the New York Times.
Rest assured there’s no catch. This is a complimentary and absolutely no-obligation offer, so you can keep up with the latest news, views and current affairs from the comfort of your home.
To start receiving your complimentary subscription:
Register online now
Or call The NZ Herald on 0800 633 377 between 9am and 4.30pm weekdays.
You’ll need your AA Smartfuel card number to register (it’s at the top of this email).
Thanks OP however 15c offer seems to be only once a month (not 4 times) Save 15 cents per litre once a month