My wife and I are test driving a Model 3 today. I already own a Model S and she will be getting the Model 3 is all goes well (which I expect will). My question is where on the order form do I put my Model S Referral Code. My history of Referral Codes is that if you do not use it at time of order you loose it. I sent email to Tesla with no response. That was after a Chat request with no response. I found a phone number today and they want to route me to a local show room. Again, my history is right after I order I am assigned a someone to handle my order and then some to handle delivery. All of which may have changed now. I am just very surprised there is no 800 number for Tesla Sales to help with the order process. Anyway, maybe I will not have any issues getting it added after the order is placed but would be nice to know the proper procedure.