So I reserved my model S at the weekend in store, I told the guy I had a referral code and he said it was fine, it could be applied afterwards. I've looked on mytesla and can see all my order details, but not a place to enter a referral code. I've email the code over the sales guy but not heard anything back. Anyone else had this? Also so how does it work with the contract hire companies? All the ones I speak to don't quite now how to process it?