Give them a call with the number and make sure it is a legit number. Ask them on the recourse. If you have emails notes, and pics of problems, I don't think you'll have a problem if it goes to court.
Maybe someone here has better info, but that's where I'd start. Good Luck. Lot of fly by night operations here in AZ. All the CA people with money to spend, they are gladly taking it any way they can...