@Ayzee if you have a new order number it means he put it as a new order. My dealer also said to me that there are live slots and likely delivery May time but expect July. On the paperwork he will have to write July. I said it was a deal breaker for me and then next day he said he got it manually changed.
Im sorry this happened as I know your car was due quite early in March.
You have waited all this time, just another few months to get the car you actually want.