Spend $10 on Kindle eBooks and get a $3 credit right now! You’ll receive your credit after spending the specified amount on any eBooks between August 5 and August 12 (in one or multiple transactions). You must activate your offer during the offer period in order for your purchases to count. Your credit will be automatically applied to your account within 4 days after spending the specified amount on any Kindle eBooks. You’ll be notified via email once your credit has been applied to your account.