I would expect nothing less from CW.
Ours didn't have any batteries either, the water filter looked like it had been in there for years (ours was a used unit), and after a few weeks of new discoveries that should have been part of CWs service, I began to doubt they even changed the oil like the sticker said so we had it completely serviced at Freightliner.
Overworked and understaffed has nothing to do with it. Incompetent workers and [poor management combined with bad attitudes, general disregard and lack of self pride have everything to do with it which is common after a good ma and pa shop get taken over by a huge awning installer conglomerate run by the "Profit" Marcus Lemonis. Just my experience anyway