Similar to the previous deal last month where the 80% bonus was available, this time with 100% bonus (maximum offed by IHG):
https://www.ozbargain.com.au/node/262628
Maximum purchase is 60k points + 60k bonus for $690 USD.
As pointed out in the previous post, best use is for lower category hotels (Holiday Inn and Crowne Plaza), and watch for quarterly point breaks when rooms go for 5000 points - e.g. last round in August included InterContinental Phnom Penh and InterContinental Mendoza. Points expire in 12 months, but normally easy to extend by doing a survey or buying a cheap item.
Also, 2.5% cashback with Topcashback buying your points.
5% cashback booking at IHG.