Do my Thank You points expire?

No, your Thank You points do not expire as long as you have an active Citi credit card account enrolled in the Thank You Network. Your points will remain valid and can be redeemed for a range of rewards indefinitely. However, if your credit card account is closed or you voluntarily leave the Thank You Network, your points will expire after 90 days. It's important to note that if you have multiple credit card accounts with Citi, the points earned on each account are kept separate and will expire independently if the account is closed. To ensure your points are preserved, make sure to keep your Citi credit card account active and stay enrolled in the Thank You Network.