If you're trying to redeem via the app, please reinstall it to ensure that you have the latest version, then try to process the redemption again. If issue still persists, we recommend logging in your Hub ID via My Account Manager here https://rewards.starhub.com/StarHub/listing.jsp. If you still keep on getting errors, you may use a different browser, or make sure to clear your browser's cache and cookies. You can also try it using incognito. Let us know if issue still persists. Please also send us a screenshot for us to further check. Thanks you.