Been following this thread for a while. Hoping I wouldn't have a story to share, I was wrong.
TL
R - Had VIN and Delivery Date. VIN got reassigned few days before delivery because my DA went on vacation.
Let me preface, I understand the enormity of the challenge Tesla Delivery Agents are facing. I can't really blame the employees for the situation they've been put in. But what a cluster this whole debacle is.
Ordered Aug 2018, after taking a test drive. Amazing car. I have a Trade-in and Financing a portion. Was assigned Oct-Dec Est. Delivery Date.
Someone from Mt Kisco called and me and thanked me for the order, said contact him anytime with questions. He never was to be heard from again.
End of Q3/Sept. rolls around and I get the text that they "Matched" me. I reply YES and obviously got rejected a few days later. The taste in my mouth sour'd a little bit after that. But fine I'll wait it out.
One month later, 10/23 I get a text, "Hey This is JohnDoe from Tesla, your car is ready and your scheduled delivery date is 11/6 at Mt Kisko (that is how he spelled it) I will reach out to you soon to finalize the paperwork". 20 seconds later he sent a second text that said, "Here is your VIN xxxxx for 3rd Party Lending". Replied instantly with an affirmative response, did the required steps in my account page. The VIN never appears on my Account page, this was my initial indicator something was up.
Waited a ~week, no word from JohnDoe, so I call the Delivery Call Center, I get some story that they see the VIN in the notes on my account, but it's not assigned correctly, they will reach out to my Delivery Advisor fix it up because they were unable to.
Waited another week, now it's one week from delivery. Still heard nothing from my Delivery Advisor, so I decide to call again ( 1 hour on hold). Same story, the VIN is still not assigned correctly. They tell me I need to contact my DA immediately so he can fix it up, as the VIN was still available. They gave me his email and told me to put URGENT in the subject, "He'll see it that way". He insisted he was unable to help me and my DA would have to do any changes. After I hung up I proceeded to email JohnDoe with URGENT in the subject. But immediately get his Out Of Office message saying he's been out for the past week and won't be back until a day before my delivery.
Called back again the next day, 2 hours on hold. The story today was the VIN is gone from my account. They could see it in "Deleted VINs". He checked and the VIN was already reassigned to someone else. So I asked if I should show up on 11/6 or not, Ive already taken the day off and made arrangements etc., he said he will contact me on 11/5 and see if they can match me again. WTF?!
My intuition based on comments from the Agents, aside from the date you ordered, you are prioritized on how risky your transaction is perceived. Trade-In is ding number one, Financing is ding number two. These all add complications to the transaction that could cause delays. So say someone has cash and is an aggressive squeaky wheel, guess what Mr. Quiet-TradeIn-Financing guy.... Might not always be the case, but some iteration of this is happening I think.