Almost All Channels Are Missing from Lineup After Recent Move.

There are very few channels listed to stream on myxfinity.  I chatted with agent who didn't seem to grasp the problem, so I gave up.  I unlinked the account for the old address and made the new address/account primary since that was not done.  All I want to do is see my channel lineup, including premium subscriptions, etc.  Favorites and recorded/scheduled programming was deleted  by Comcast during the move.  How can I get my channels list up-to-date?