i ordered a 75D mid may and last week i decided that I wanted to change it to th 100d since I plan on keeping the car for a while. The DS ends up telling me that car is going into production in a few days (on my tesla page it says order is confirmed) so now I can't change Battery unless I let go of my 2500. No one notified me what change process would be like? It was more so said that pay $500 and you can chnahget anything you want. Is it always like that or is it because Its coming to end of the quarter. P.s. Now my car is out for delivery, so he wasn't lying. Just wish they were more clear about change orders.