[Prime, eBook] Download a Free eBook and Get a $10 Reward (for Use on Minimum $20 Prime Eligible Items) @ Amazon AU

Targeted for specific Amazon Prime members.

A banner displayed on my Amazon app. Download a free eBook and get free $10 free credit. I randomly selected an Amazon eBook and hit Download/Read now. Getting an email to 'Claim your $10 shopping credit'. Done that. Try checkout with Quilton toilet paper and can see $10 discount.

Ebook that I selected:
https://amzn.asia/d/cn7Y0Bx

Choose a free eBook and get a $10 reward for use towards a purchase of $20 or more on Prime eligible items. You have 30 days to claim the $10 reward, and another 30 days to redeem the $10 reward.

T&C:
These terms and conditions apply whereby eligible Prime members who choose an eBook and select ‘read for free’ (“Qualifying Action”), will be eligible to receive a promotional credit of $10 for use towards a future Eligible Order (“Offer”). The $10 promotional credit will be available to be claimed by the customer after undertaking the Qualifying Action. Once the $10 promotional credit has been claimed, it will be automatically applied to a future Eligible Order at checkout. An “Eligible Order” refers to a purchase of $20 or more on one or more Prime eligible items, which is shipped and sold by Amazon AU and shipped at the same speed to a single address, in a single order, and excludes products sold by third-party sellers (even if fulfilled by Amazon AU), digital purchases such as e-books, subscriptions such as Prime video and audible, gift cards and postage or delivery rates. If you do not undertake the Qualifying Action, the Offer will not apply. If you cancel or return the Eligible Order for which the promotional credit was used, you will only be refunded the price paid for the Eligible Order (that is, less the value of the promotional credit which will be allocated proportionally among all Prime eligible items included in your Eligible Order), subject to the applicable refund policy, and the promotional credit will be invalidated. This Offer cannot be used in conjunction with any other offer. This Offer cannot be used on pre-existing orders. This Offer does not apply to orders placed with 1-Click. This Offer can only be redeemed once per eligible customer. The maximum benefit you may receive from this offer is one promotional credit of $10. This Offer may be withdrawn or amended without notice.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 reserves the right to cancel the Offer at any time where Amazon suspects misuse, abuse or fraud. 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.