Repco have a combo deal Autoglym Super Resin Polish 325ml and Autoglym Bodywork Shampoo & Conditioner 500ml for $17
In the cart it is showing Polish $10.78 and shampoo $6.22
Polish by itself is $25.99 and Shampoo is $14.99, so total saving of $23.98
I can't get the link to the deal directly, but it should appear on the right hand side when you browser either the polish or the shampoo.
I've got a bottle works well to fill micro scratches but doesn't seem to last very long even with using a spray sealer over it(Bowden fully slick)