https://www.catch.com.au/event/buy-3-save-15-buy-4-save-20-1…
Buy 3, Save 15% | Buy 4, Save 20%
2x 2 x 3pk Zilch Long Lasting Toilet Cistern Blocks
$9.16
1x Lemon & Lime BBQ Foil Tray 10pk
$5.99
1x 2 x 60pk Finish Powerball Ultimate All in 1 Dishwashing Caps
$43.20
Sub Total$58.35
Shipping$9.95
Discounts
Multibuy - Buy 4, Save 20%- $11.67
Free delivery with OnePass- $9.95
Total$46.68
You’ve Saved:
$21.62
Catch lists a lot of participating products.
This is just an example.
You can freely combine what you want.
Most products have good discounts after four pieces.
Not sure if targeted, but $15 off $75 with code ONEPASS15 for onepass members.