Equipment sent to wrong address and billing issues

I recently moved and transferred my Xfinity internet service to my new address. However, I noticed the starter pack equipment for my transfer are being sent to my old address many states away. Any help would be greatly appreciated.

Also, I noticed I am being double charged on my bill. One for my old address (which has not been used in over a month, with no modem hooked up) and one for my new address. Can someone explain this to me since I was lead to believe this was a direct transfer with no change in service.