Finally got round to doing a scan and sorting this out. I think I managed to fix it.
The scan gave me an error of “level control system sensor left front (g78) mechanical failure”
I cleared the code and then went in VCDS to 55 headlight range, performed some basic settings and the light went back to the centre but I got a code “01539 headlights not adjusted”
Went back into the basic settings and ran the level adjustment, you have to click the “next” box within that menu a couple of times.
Lights are now central and no fault codes. The ground wasn’t very flat and it’s late so I’ll probably redo the adaptation at some point later.