dollarooau@gmail.com 
A slightly better deal than https://www.ozbargain.com.au/node/865195. AusPost is also offering $75 off first year’s premium with Comprehensive Car Insurance.
The price is about $10 more than Bingle for me (3rd party, postcode 4551), but the cashback took care of it.
Recent experience with ShopBack has been lots of Amazon tracking issues, but eventually support sorted them out. I know, we are not supposed to spend hours dealing with support for $5 to start with… Chances are, they are really not doing well.
