Shipping change

Anyone have experience with updating a shipping address after the order is shipped?  I placed a order late last night and tried to cancel/change the order after, but Verizon would not allow me to change online and I was directed to call in the morning.

When I called this morning I was told the phone had not yet shipped, so I gave them the correct address.  However, I just received a message from FedEx and the order is still going to the wrong address, where I no longer live.  FedEx says Verizon will not allow me to change the shipping details at this point.  

I realize I made a mistake, but I'm beyond frustrated as it as been impossible to correct it