Receive $15 off purchases of $50 or more on Qualifying Items. Promotion will be applied at checkout. Offer expires at 11:59 PM (AEST) on February 2, 2018.
Some items:
$54 TP-Link AC750 Dual Band Wi-Fi Range Extender w/ Gigabit Ethernet Port (RE210)
$94.95 Sennheiser HD 2.30i Black Headphones
$44.95 TP-Link N300 Wi-Fi Range Extender, AP mode Supported (TL-WA855RE)
$214 SteelSeries Apex M800 US
$35(Add $1 item) TP-Link AC750 Wireless Wi-Fi Travel Router (TL-WR902AC)
$214 Sennheiser G4ME ONE BLACK
$60 1TB Seagate Expansion Portable Drive
$42 BELKIN 8 OUTLET SURGE PROTECTOR
These terms and conditions apply to the offer (“Offer”) whereby customers who purchase $50 or more on selected school supplies will receive $15 off their order. Offer ends at 11:59 PM (AEDT) on February 2, 2018. The Offer only apply to items sold by Amazon AU on Amazon.com.au. Offers do not apply to purchases made from third-party sellers on Amazon.com.au. Each Offer is valid only for select products as displayed for that Offer on amazon.com.au (“Qualifying Items”). The Offer only applies to a purchase of $50 or more of Qualifying Items in a single order. If you do not add $50 or more of Qualifying Items to your Shopping Cart, the Offer will not apply. If you cancel or return part or all of your order such that your order no longer contains $50 or more of Qualifying Items, the Offer will cease to apply and, if applicable, you may be charged for any items retained that no longer meet the relevant Offer terms. Offers cannot be used on pre-existing orders. This Offer is subject to availability and may be withdrawn or amended without notice. This Offer is not redeemable for cash. This Offer is non-transferable and may not be resold. Amazon.com.au’s Conditions of Use and Sale apply. Delivery will be applied to each item in accordance with Amazon AU's standard delivery rates and policies. If eligible for the Offer, the discount of $15 (for each order containing Qualifying Items totaling $50 or more) will be applied at checkout.
The category is quite broad - eg. Logitech G Driving Force Shifter is apparently a back to school item!