Cannot order free xFi pods

So, I have the gigabit internet from xfinity and am happy with it, but get poor WiFi throughout several locations in my house. I got an email from xfinity a few weeks ago stating that I could get three xFi pods for free. When I click the link in the email to order the pods, the website redirects several times and ultimately leads to a page that ends with

“ We're sorry.
Please contact us and one of our friendly and knowledgeable representatives can help.”

I’ve contacted support, and no one seems to be able to help or have any idea how to order them for free. They sure know how to direct me to pay $119 for them, though.

Why promise free pods, and then provide a link that doesn’t work?