This offer came through a Briscoes email, T&C's below, including the discount breakdown over 3 boxes.
I would assume that you can deactivate and reactivate with the code at your own risk. No dates on the email.
HelloFresh terms and conditions:
Only valid on a household’s first four boxes or for past customers with a deactivated account who cancelled at least 3 months ago. This voucher entitles you to up to $75 off your first box (including standard delivery), $45 off your second box and $10 off your third and fourth boxes respectively. Total promotional value of $140. Discount amount is based off largest box size, 5 meals for 4 people. Excludes upgrades and add-ons. By using this voucher, you will be signed up to an ongoing weekly subscription. Not valid in conjunction with any other offer. Full T&Cs available online.
Further T&C's online:
By claiming this voucher you will be signed up to an ongoing weekly subscription. Pause or cancel in your online account by 11:59pm 5 days before your next scheduled delivery. Delivery fees may apply. Discounts do not apply to Gourmet or Dinner to Lunch recipes, or add-ons including the Fruit Box or Snack Box or delivery fees. Visit hellofresh.co.nz/about/termsandconditions for full details.
As part of our mission to change the way people eat, we are constantly finding ways to help you balance your carbon footprint. HelloFresh commits to offsetting all the direct CO2 emissions caused by our internal operations and offices, plus all emissions from corporate travel and delivery to our customers. We do this by investing in green initiatives via our partner Planetly. By completely offsetting the carbon footprint of our deliveries, we support you in making green choices and boost environmentally friendly projects throughout the world.
Another option
https://new.grabone.co.nz/grocery-food/other-food-drink/p/he…