I called Tesla every day for the last week that my account was in this state and they told me "everything's fine" all the way up until they called to cancel.
This is where I'm at. The folks on the 888 number, my ISA, and the OA from our local store have all basically told me everything is fine and to back off. I'm sure they'll all own up to the mistake when my appointment gets canceled.
Call your local delivery center. They can ping the car and also have a delivery arrival estimator that is more accurate than what the DA will tell you.
That's who I called. There is no car to ping. There is no delivery estimate because there is as yet no car being delivered.