Most of the time SA means Sales Advisor. They don't do or know much. You can use them for sales related questions, but really the process is so simple most folks never meet them. Back when Tesla still had mall stores, they were mostly staffed by SAs.
If you order something, and get closer to delivery, you will be handed over to the Delivery Team and you will be contacted by a DS, or Delivery Specialist. They are somewhat more useful, actually handle paperwork and set appointments.
The idea is most folks order from the website themselves and have no contact until delivery gets close.
Hanging in the wind is pretty normal. I am trading my current X, so at least I get a request to update the mileage and the tree is re-quoted. That is really the only sign of life. Tick Tok and repeat.