Deposit Dt applies only for the call to put in a reservation/confirmation.
Reservation/Confirmation Dt takes over after that.
If you reserved in March, folks are getting their VINs around this period of time. (There was work stoppage, cars produced based on color, etc.).
VINs have been assigned as early as stamping and cars are still delayed to supply chain.
Bears video is good 'metric' of the cars being produced; and members reporting here about VIN assignments, shipment, etc ..
If you see folks getting a VIN earlier than you, it could be they were open to changing their options (color, wheel size, pick up location, etc.) and a cancellation occurs.
And no, there is no logic, to who gets a call if & when a cancellation happens & who gets called. We have speculated, among many things, location could be a factor. Again, IDK for certain.
G'luck.