As tittle and from website:
(up to $20 value), until 30 September 2017 when you pay using your Westpac Altitude Credit Card. This is up to the total value of $300 for all rides claimed in the offer period.
I mean this is as good as 300 dollars back, also can get Qantas Altitude Points.
People post other uber deals, so i thought why not
Enjoy
New cards only that apply via the link. "Not available to existing Altitude card holders."
damn