I had a VIN, and the SA still allowed me to delay.Not sure if this applies if you have been assigned a VIN.
I had them put 12/15/2021 in the "Don't VIN match until this date" field.
Sure would be nice if we could fill out that field ourselves without trying to get in touch with an SA to do it for us.
And yes, I did mention this to the SA. I think he had gone back to playing Tetris by then.
I ordered when I did because it was going to be a Jan-Feb delivery time frame. Then they marched it all the way back to the end of Sept. Got a VIN and everything. Couldn't get anyone on the phone, so I drove 130 miles to the nearest Tesla store to talk to an SA.