That's an unusual wait for 2020. Ask your leasing company for the Tesla RN.(Reservation number) Leasing companies have been known to sit on orders so that they can consolidate them and I presume get some sort of discount. With an RN to quote you are likely to get more info from Tesla on the status of your car. Worth asking when the order was placed with them so that you can beat the leasing company with it if, as sounds likely, they sat on it.
Am I right in thinking no RN = no order had been placed?