Received an email which may be targeted as I hadn’t used airport parking for a while, however the code seems to work without using my login up to the checkout page.
It’s been a while since we’ve seen you at Sydney Airport Parking, so we’d like to offer you a little sweetener. Simply book online before midnight, 31 December 2017 and use the promo code: TAKE20 to get the instant $20 saving. What’s more, you can use the promo code when booking your parking at any of our car parks!
Note 1. From the comments below it appears that the booking can be after 31/12 as long you book before midnight on 31/12. This can be handy for picking up visitors over the January holidays.
Note 2. Apart from this deal alway prebook as there are substantial savings over just lobbing up and paying full price.