If you see this banner on a Kindle webpage, click on it to activate the opportunity to get a $6 credit when you spend $25 on Kindle books. Once you click on the banner that looks like the one above you should get a page that looks like the graphic below.
You can also try clicking on the link above to see if it activates the offer for you. Once I activated my account, it’s nearly impossible to reconstruct the process.
Terms and conditions apply. Read about them once your account is activated.
You have until September 10 to spend the $25 to earn the credit. Good luck!