Got an offer via email with a unique code. As stated in the email:
Sign up as a new customer to NEON's annual or standard monthly (for two months or more) subscription by 13 November 2022 using one of the promo codes below and you will earn 150 bonus Flybuys.
To receive your bonus Flybuys, all you need to do is copy your unique promo code below, follow the ‘sign up now’ button, apply the relevant code at check-out and complete a full payment cycle.
More of the terms: *Get 150 bonus Flybuys when you use your unique promo code (supplied above in this email) to subscribe to a new Standard Monthly NEON subscription for a minimum period of two months, or a new Annual Subscription here by 13 November 2022 ("Offer"). Offer does not apply to the Basic monthly plan and is available to new NEON subscribers only. Existing Neon subscribers are not eligible. Bonus Flybuys will be credited to your account within 35 days of the offer end date. The price of the Annual plan is $178.99 for the first 12 months and the price for the first month of the Standard Monthly plan is $16.99. Your plan will automatically renew at the end of the subscription period at the full retail price applicable at the time of renewal (currently $179.99 for the Annual plan and $17.99 for the Standard monthly plan, but subject to change) unless you unsubscribe before the end of your subscription period. NEON’s full terms and conditions apply and can be found here.
Assuming the Z petrol discount option is selected for the Flybuys account 150/4 = 37 with 2 Flybuys spare. 37 x 0.03c off per litre x max fill 50 litres = a saving of up to $55.50 on fuel + 2 Flybuys leftover. Taking out the minimum two months $16.99 + $17.99 = $34.98 that's still a saving of up to $20.52 ($55.50 - $34.98)
150 flybuys will give you $1.11 off per litre at Z with a couple flybuys points in change (so $55.5 total fuel savings if you buy 50L fuel).
2 months of Neon will cost you $34.98.
So it's 2 months of Neon for free, and $20 petrol savings.
Not sure I'm bothered enough to do that, but other fellow cheapies might be. But I'm probably just spoiled by the very generous Disney+ flybuys promotion, haha.