https://www.americanexpress.com/content/dam/amex/au/merchant…
Offer Terms
Offer valid for purchases made online or in-store at the participating brands listed here.
Excludes purchases made at department stores.
Only valid for online purchases that are shipped to New Zealand.
Excludes transactions where you do not spend directly with your Card to which the offer is saved, online or in-store at participating brands.
If you spend in a currency other than New Zealand Dollars, it will be converted to New Zealand Dollars based on the rate of exchange at the time your Card is charged. A Currency Conversion Fee will apply and this fee is not eligible for the offer. For more information regarding charges made in foreign currencies refer to your Card Member Agreement.
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 5 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.
Full Offer Terms available here.
FYI makes the Sennheiser PXC 550-II Wireless $289 as they are currently on special.