Second Residence Vanished?

For years our Xfinity account via app or web which is in my wife's name, has had the ability to toggle between our primary residence and a secondary residence that has xfinity service in the Florida Keys.  

Suddenly that residence and its associated service is not to be found and im unable to service the account. (Add/delete channels etc).

Is there a way to resolve this without spending hours on the phone with the call center?   The system has ALWAYS been cumbersome because only allows for jer name on our primary account but I ised to be able to log in and make any necessary changes.

Any input would be appreciated.