Missing battery for Storm Ready Wifi

I got the Storm Ready Wifi, but it was shipped without it's backup battery.  I went to the store and they told me to call, but I cannot find a customer service phone number on the Comcast/Xfinity website.  Plus, my experiences with them have not been the greatest, so I figured I'd try here.

If a customer service rep is monitoring these forums, can someone please contact me about sending out the Storm Ready Wifi battery backup?

-Lawrence [Edited: "Personal Information"]