Get a FREE $5 eBook credit at Amazon when you spend $20 on Kindle eBooks sold by Amazon.
First, be sure to activate the offer, then spend $20 on Kindle eBooks sold by Amazon. After that, you will get an email from Amazon letting you know the promotional credit has been applied to your account and telling you how to redeem the credit.
Please note this expires 21 days after being applied to your account. Also, this offer does not apply to eBook pre-orders that are fulfilled outside the offer period, physical goods, digital magazines, audiobooks (including Audible companions for your Kindle eBook purchase), print books, or digital subscriptions such as Kindle Unlimited.