Wrong Gateway listed for account

We upgraded to xFi Complete several weeks ago.  When we installed our gateway, there were issues and a technician had to come to the house.  When he was done everything worked and he had removed several items from the lines that previous installers had put in to make things work.

He took our old gateway with him.  Our new gateway is not showing on our account.  It still shows the old gateway.

How do I get this fixed?  I want to get the free POD, and it says that I have an incompatible Gateway.  I'm getting billed for xFi Complete.

What should I do.  I can't get the Chat Assistant to recognize my issue or let me talk to a person.

Thanks