Wait time after being called to the back was a little long

I have been a,patient of record for several years. Why has office NOT suggested getting crowns before? Now, i am told by Dr. Chang, there FIVE CROWNS that needs to be scheduled. This should have been done a little along as I am A regular and consistent patron of Dental Professionals.

I received a phone call from office that they have made a mistake in regards my schedule and need to make another one with more time line.