We had a non-standard install, but none of the then providers (BP Pulse, Podpoint, SSE, Wallbox) got back to me – I was pretty much ignored.
I then purchased my own EV charger and contacted a local electrician for the install, he quoted £250 to supply and fit 2 x 25 metre lengths of 6mm armoured cables (was running 1, thought we might as well run another for future use) form our upstairs fuse box into the roof, then down at the back of the house to the basement and up through wall to charger. Fit and test charger & fit double outside socket for the other cable along with the RCBO for the car charger in the upstairs fuse box.
Total cost with my Viridian charger was £550. Somewhat cheaper than the 2021 price quoted by everyone else for a standard install.
In life, it's not who you know that's important, it's how your wife found out.