Tesla announced the "NEMA 14-50 adapter" (actually a Tesla Mobile Connector Mobile Connector) would no longer be included before you took delivery. Since you stated charging was critical, seems obvious you should have picked up a Tesla Mobile Connector before you took delivery from your Tesla Service Center. Then if a Tesla Mobile Connector came with your Tesla you could have just returned it. I went one step further and had our Tesla High Power Wall Connector installed at our home on a 100A 240V breaker before I took delivery of our 2015 P85D ~ 4 years ago. Not having your "fuel" source in place for your $60k car seems irresponsible. Would you buy a car needing hydrogen and then blame the car dealer / manufacturer if there's no hydrogen refueling station nearby?
Isn't the simple resolution to buy a Tesla Mobile Connector or Tesla Wall Connector? In March, I found a brand new SignatureTesla Wall Connector for our son's Model 3 on Craigslist for $375, had the electrical permit pulled and the electrical contractor lined up.. ALL before they took delivery of their Model 3 LR... in fact even before they closed on their house.
Great planning = Great implementation
I don't think you understand what I am trying to express here. I am not angry at the fact that the adaptor doesn't come with the package. I acknowledge that it was a lack of research on my end. Mind that, the sales I was talking to did mentioned to me that you dont have to get the wall charger, the nema charging will be sufficient enough. I choose to just stick with what the sales team told me instead of doing more research.
I am upset about the way the situation is handled when there are issues.