I had mine at at VW Lookers Battersea last Wednesday. Service bloke took pictures, I have very small bubbling on 1 wheel arch, and he called me yesterday to confirm VW UK have agreed to pay 100%. Its likely they will replace the bubbling wheel arch and repair the root cause on the other.
He has passed my details to the bodyshop who should call me to arrange a time to drop the car in. Saying that he just called back today as the body shop have asked the mileage on the car, which seems a bit strange. Not sure why the mileage would matter.
I'll wait and see what happens.