Unable to redeem free xFI pod

I got the "Your Home WiFi Evaluation is complete" email and went through the redeem process to redeem my free pod. Once I get to the final step, it errors out: "The product you’re interested in isn’t available for purchase at this time."

The internet is pretty unusable further away from the router, such as my office and bedroom, so I definitely need the pod and/or the XB8 router.