Here are the steps to look up your reward history:
1. From the homepage, click on the profile button located under your user name at the top right of the page.
2. Enter the security question and your password.
3. Scroll down to the bottom of your profile page and you will see a box with your reward history. Your last few rewards will be shown. Please note that the date shown in the rewards box is the date the reward was ordered, not shipped.