I tried for late Sept. BBB reservation and wasn't able to score an appointment either. CM said to try every day. She even refreshed the appointments 5Xs while I was on the phone to see if anything popped up. Super sweet gal. She said if all else fails, try the morning of the intended visit. Lots of people cancel 24 hrs in advance (plans change, kids get too tired, etc) to avoid paying the cancellation fee. Best of luck!