Free Pods from Xfi Advantage?

So for the past couple months I have not been able to get reliable wifi coverage in my upstairs rooms, I signed up for xfi advantage offer because they were offering free pods to help cover the house. The email about the wifi assessment said everything was fine. But thats not true. Half of my house won't pick up internet on the Gateway.

I have called Xfinity 3 times and the first two people I talked to could not help me and the 3rd person told me my pods were in the mail and that I would be receiving them in a few days- I still haven't received them and feel like they have been giving me the runaround!