Just booked a hotel yesterday (that didn't qualify for current Mastercard promo). Then today stumbled upon this code while looking at my credit card statement and it doesn't have hotel exclusions. Could've saved myself $70 :(
Valid for use by 11:59pm AEST, 31 December 2018 (“Redemption Period”). Stay Period: The stay dates must be before 30 June 2019 (inclusive) (“Stay Period”).
Must pay using Westpac cards.
Complete T&C here
Pre-paid bookings only, of course.