As I mentioned above, do not expect the order process to follow a strict order when it comes to Toyota Online. It can, and probably will, be be quite haphazard. A number of orders over the last number of weeks have been brought forward with earlier than expected collection dates. It sounds like it is the same for you.
As
@AndyRC mentions, if it's already registered it won't be a new car. The car will only be registered by Toyota once you have paid for the car and gone through the appropriate handover.