So I ordered and iPad from Xfinity.com/iPad in Nov I never received it, I've called and had many tickets filled. Yet I'm still unable to get a resolution I'm still paying for it gonna be the third payment on my next bill and yet I still don't have it. The iPad was sent to the wrong address and even signed for and received by some stranger, but since they signed for it regardless of the fact it was not me Comcast seems unwilling to do anything about it.
This isn't something you receive right away. You have to wait at least 90 days [your three payments] before you should see it listed in the rewards center. After that, it can take anywhere from a few days to several weeks to arrive.