The EV5 remains one of the more spacious, with the Air has most of what you want and a composite boot lid making it light and manageable, allowing you to pocket £3k and maybe save just in case!
Given BYD’s mass exodus with only one phev remaining, maybe the 3 EVO isn’t meant to happen?
As for telling you, you can cancel, but would be treated as a new customer, thus requiring Drive Smart is rubbish to say the least.