Found on the Brisbane Airport Facebook page.
It's Day 3 in Brisbane Airport Parking's 12 Days of Christmas! Get 15%* off International ParkLong! Hurry, these deals are only available for 48 hours! Use code DAY3FB to redeem today's offer. Book online and save at https://parking.bne.com.au/en/
I thought this was a good deal - put in my dates for Christmas holiday and it came up as $202 reduced to $171. I was astounded how expensive this was even with the discount!
It only showed me Park Long options so I decided to remove code to see the other options. Park Valet for the same dates was 'only' $149! AirPark was even cheaper.
If considering this, make sure you check the other options before just blindly using the code!
15% off all Brisbane airport parking has been around for a while:
https://www.ozbargain.com.au/node/318063
Wow - I'm surprised it's still valid from so long ago! I wish I'd known about that, I just booked and could have saved $20 :(
I would be very surprised if an OzB user ever paid to park at the Brisbane airport by choice.