Just spoke to Tesla on 01628 450660 and quoted my RN number which I got from my lease provider. Even though my details match what's on the account, they said I'd have to speak to my lease provider for the EDD which I've been told most recently is just December.
I asked him if there was any known delays which would push the MYP back to Jan to March and he said as far as he was aware, there isn't.
Lastly I asked if they were coming from Shanghai or Berlin, and he said Berlin. The only cars coming from Shanghai were MYLR/RW and M3LR/P. All the MYP we're coming from Berlin.