Can"t order Free Xfi Pods

I received an email saying I was eligible for 3 free XFi Wifi extenders. I tried the internet link, it said I had to call. I called and got the runaround through two people. I finally get to billing, they said I have to go to the store to get them. I go to the store and they say,abruptly,  no, you have to get them online. What a run around and you wonder why you get low marks for customer service.

How do I actually get them?