This is why I mentioned you should go into a store. its highly likely that, if you do nothing, your order will get linked to someone in a call center (like their call centers in vegas) while you have 3 people doing triple work trying to find you a car.
You need to pick one of those three people, and tell them you ordered online to prove you are serious, and "can they see your order number in their system?"
I am very much not a personal fan of asking multiple people to duplicate work, because I hate it when it is done to me and my co workers (and so does anyone else who has had this happen to them, which is almost everyone, at some point in their lives).
Pick one of your people (the most responsive one) tell them you ordered, and let them help you. Tell the other two that "so and so is working on my order for me" so they can move on to helping someone else. The tesla reps can link an order to themselves, but iff they dont, it eventually gets randomly assigned.