Vodafone is giving out quite generous trade in offers when you order a new iPhone 14 or iPhone 14 Pro with them.
Basically, you get a trade in value from Asurion which is a 3rd party trade in organizer and Vodafone will provide a $150 credit on top of the value you get.
You can find out value of your existing device on this page: https://www.vodafone.com.au/hot-offers/iphone-14-series
Savings based on $1150 trade-in credit for iPhone 13 Pro Max 1TB in Good Working Order plus $150 bonus trade-in credit. Powered by Asurion®. Savings vary depending on device type, model and condition. Offer ends 09/10 (unless extended). Trade-in by 23/10. T&C apply.