I am very angry. I ordered a 60kw with Supercharging ONLY because I was afraid what not having it would do to resale value. Now I learn that wasn't a valid concern at all. I want my $2k back and they can turn off my supercharger access until I sell the car!! I'm a very good customer (my husband and I both have S's) and I'm pissed.
I understand why you are upset but this could easily have been something they've only come to the realization this year that the 40kWh version wasn't going to work for them anymore. You still have Supercharging in your car so you got exactly what you paid for but wouldn't hurt to ask about disabling Supercharging on one of your cars.