To get to that section you need to click on this image/link on the main page..
That link just takes me to the same page it is on. I first tried the site last night and thought maybe a problem because I was outside the one hour window but tried logging out and getting a fresh email and it still does the same.
I’m keen to take a look as in past employments the gift cards have been a great way to get discounts on usually not discounted stuff (for example apple rarely discount but 10% off Curry’s vouchers and bingo)
Edit: Problem is on my iPad, just tried my android phone and that works fine