Good deal for the models/widths that can be hard to get if not through from the official website & stores.
Don't see any reason it could not be stacked with with https://www.ozbargain.com.au/node/803263
DETAILS
Save the offer to your eligible Card and spend online only at www.rmwilliams.com.au by 05/11/2023 to receive a 15% credit one time. Limited to the first 30,000 Cards to save the offer. Exclusions apply.
OFFER TERMS
Excludes purchases made at department stores such as David Jones or Myer.
Payments must be charged to your Card by 05/11/2023 to be eligible for the offer. If a business does not charge your Card by this date (e.g. due to a delay in dispatching your goods), you may not be eligible for the credit.
Offer is limited to one credit per Card to which the offer is saved and only spend on this Card counts towards the Offer.
Excludes transactions where you do not spend directly with your Card to which the offer is saved, at R.M.Williams at www.rmwilliams.com.au. Offer valid at Australian website only.
Excludes transactions made through a third party establishment or payment processor.
Credit is not redeemable for cash or other payment form.
Credit should appear on your billing statement within 15 business days from qualifying spend but may take up to 90 days from the offer end date.
Credit will not be applied to your Card Account if your Card has been suspended or cancelled.
Credit may be reversed if your qualifying purchase is refunded or cancelled.
Full Offer Terms available here.
Not on platinum.
I got UGG instead