[NT] 25% off Pre-Booked Parking @ Darwin International Airport

AANT members (membership not required) receive 25% off carparking at Darwin International Airport. Looks like a generic code. the first time, when I clicked the long term parking I noticed that on the payment screen I was offered more discount for the short term parking

How do I book online?
-Click book now
- Enter your enrty date and time, exit date and time and AANT promo code AANT25
- Click on 'Find Parking'. Prices shown will include the discount

T & C

This offer is valid for online bookings only
Offer cannot be used in conjunction with other promotions
Offer may be recinded at any time with a given prior notice
General booking terms and conditions of entry apply

I'm booking for 4 days
Long stay plus was $130 now $87.75

I just saw another promo code FLYAWAY but the price only came down to $99.45