Same as previous deal https://www.ozbargain.com.au/node/306555
Thanks to our partnership with American Express, Card Members can get a $20 credit on their Card account when they spend $50+ at any participating restaurant from 19 September to 22 October 2017.
Yes, as long as it's a new booking on a new day (or new time on the same day too, though that's strange).
One booking, one credit.