I received this notice from Kdp and sharing it with my subscribers. Have you ever used this service?
After careful consideration, Amazon Giveaway is retiring. Thank you for participating in the program. Our records show that you have credits from previous eBook giveaways. These credits can be used to create new giveaways until October 10, 2019 and customers can enter giveaways until October 17, 2019. You can also download any remaining eBook credits as Kindle claim codes from the Amazon Giveaway dashboard. Claim codes do not expire, and can be gifted through social media channels, or directly to fans, followers, friends, or family members.
Any unused credits that are not downloaded as claim codes will be refunded by November 30, 2019.
To find your giveaway credits, look for giveaways with the “Use prizes in a new giveaway” button, under the “Completed” tab on the Host Dashboard at https://www.amazon.com/giveaway/host/dashboard/
You can still buy eBooks as a gift to share with your readers at an event, via social media, or through a newsletter. For more information, please visit: https://kdp.amazon.com/en_US/help/topic/G200652260.
To learn more about other promotional programs, please visit: https://kdp.amazon.com/en_US/help/topic/G201723090