Cult Beauty is offering free worldwide shipping on The Ordinary products. They are based in the UK and shipments to Australia will have 20% VAT removed at check-out. UK prices are marginally cheaper than AU prices, but with VAT taken off it's definitely cheaper. Deliveries to Australia are tracked.
If you haven't heard of the brand yet - The Ordinary specialises on targeted yet affordable skin care treatments using active ingredients that have been scientifically proven to be effective. They specialise in serums and hydrators, and also have a foundation range. The brand has been extremely popular since launch, and there are plenty of online reviews. The trickiest part is knowing what to use for your personal skincare concerns/targets as you have to pick and choose to customise your own routine. Check out the regimen guide for help.
The foundations come in a great range of shades and comes in a serum(light to medium coverage) or coverage (medium to high coverage) formulas. Pretty cheap at £4.75 for the serum foundation. Their primers are also available from £3.25.
You can buy The Ordinary products locally at their store at Sydney and Melbourne, or from adorebeauty.com.au, or Priceline or Myer. However, a few products aren't available for sale here due to restrictions but you can buy online from the UK.
I can vouch for The Ordinary products, but I haven't bought from Cult Beauty before. They look like a well-established company though.
Update : Thanks to sTon3r, get a further 15% off min £20 spend by filling in your preferences and using code 'YOU15'
Can vouch for the store. Good prices and decent shipping here.