How do you actually redeem points?

I keep getting emails like this to rate my flavors to redeem points, but when I click the “redeem points” button it just takes me to the “rate your flavors” page and there is no option to actually redeem anything?

I keep getting emails like this to rate my flavors to redeem points, but when I click the “redeem points” button it just takes me to the “rate your flavors” page and there is no option to actually redeem anything?