Okay, I now have this resolved. In effect they tried to complete my order using next years prices apparently. In their own words:
"Good afternoon,
Thank you for your message, apologies for the confusion on your order form.
Please find attached updated order form.
The order form produced yesterday was on the new price list coming into effect on January 1st.
Just to confirm you will be paying the Q4 2022 Price, which is the one on this order form. If you could sign it and send it back would be fantastic."
So now the base price they are quoting for the car is: £26490.42
That in effect lowers the VAT I pay which in effect now totals £1,000 less than my original invoice.
The G3 paint... well I looked at that and it seems like a deal to me, I chose it. Never had it and I expect I'll learn a lesson or two there no doubt.
So all in all.... I am dissapointed with this dealer one day later !