Could only find TA's previous post from over a year ago: https://www.ozbargain.com.au/node/755436
Lower rates for the other giftcards this year.
Terms for the $10 Amazon Promo Credit:
The first 2,500 customers of Amazon.com.au who enter the promotional code “GCFEST24” in the “Gift Cards & Promotional Codes” box at checkout after purchasing $200 or more of Amazon.com.au Gift Cards in a single order will receive a $10 promotional credit that can be used on a future eligible order (“Offer”). You must use the $10 promotional credit by 11:59PM (AEST) on 30th April 2025. This Offer is available between 10:00AM (AEDT) on 6th March 2024 and 11:59PM (AEDT) on 12th March 2024. Your promotional credit will be automatically applied to your account used to make the purchase within two (2) business days after your order is shipped (for physical gift cards) or within two (2) business days after the order is completed (for electronic gift cards). You will receive an email that indicates the promotional code has been added to your account. Your promotional credit can only be used for purchases of eligible items shipped and sold by Amazon AU and will be automatically applied to your next purchase of eligible item(s) during checkout. See full terms and conditions below.
Stack with: AmEx Statement Credit: $10 Credit with $60 Spend at Amazon AU, Use up to 3 Times for those that have it.