It really hasn't been advertised well but JB HI-FI are offering and additional $200 coupon to use when purchasing a Pixel 6 & Pixel 6 pro when you trade in your phone, on-top of the trade in value of your current phone. If you have a pixel 5, this trades in for $400 and you get a $200 coupon which means you can upgrade to the Pixel 6 for $400 given your pixel 5 is in good condition.
The original prices of the phones at JB HI-FI are $999 for the Pixel 6 and $1299 for the Pixel 6 pro not including shipping.
This promo also works for the S21, S21+, S21 Ultra, Flip3, Fold3 which will give you a $500 discount to apply to those phones.
See the "FAQ" section within the square trade up page. Here is the fine print detailing the offer:
"Bonus coupon issued on approved JB Hi-Fi mobile phone trade ins between 04/11/2021 and 17/11/2021. Coupon redeemable until 21/11/2021. Redeemable coupon discount value of $500 calculated off the current ticket or promotional price on eligible Samsung (S21, S21+, S21 Ultra, Flip3, Fold3) or coupon discount value of $200 calculated off the current ticket or on eligible Google (Pixel 6). Coupon redeemable at a JB Hi-Fi Australia stores or JB Hi-Fi Australia website. Expired
Update: Bonus coupon is available for Google Pixel 6 until 14 Dec.
Bonus coupon issued on approved JB Hi-Fi mobile phone trade ins between 04/11/2021 and 14/12/2021. Coupon redeemable until 19/12/2021. Redeemable coupon discount value of $200 calculated off the current ticket or on eligible Google (Pixel 6). Coupon redeemable at a JB Hi-Fi Australia stores or JB Hi-Fi Australia website.
Coupon redeemable for a single unit purchase only and can only be used once. Coupon must be surrendered upon use. Cannot be used in conjunction with any other coupon. Balance is not transferable or redeemable for cash. Coupon offer not available at JB Hi-Fi Airport located stores.
Regarding the trade in service I think it is very generous in comparison to samsung. They offered $400 for my pixel 5 and $220 for my S10+. Samsung offered $205 & $70 for the same two. Also, the trade in value of your phone (not the $200/$500 coupon) is offered in the form of a gift card which can be used for anything at JB which is nice.
Edit: Both coupons can be used, and doesn't have to be the recipient redeeming them. Thanks cycloneaussie.