I think I can help with some of these questions about the basic timeline.
I ordered my MY on 4/14/20.
On 5/23/20 I noticed the documents section of my Tesla account showed a mvpa. The mvpa showed I have been assigned VIN 99xx. At that point I had not received any contact from Tesla.
The next day, 5/24/20, I noticed my Tesla account had been updated to show a delivery date of 6/23/20. This is located on the right side of the page, right below my reservation number and right above the address of my delivery center. Still had not received any contact from Tesla.
Today, 2/25/20, I received the same text message stating, “We need to verify you are paying cash and not trading in a vehicle.”
I ordered a White MY-AWD with black interior and Gemini wheels.
Hope this info is helpful.