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The ID is based on the FSC key to galls, but the only pictures I can find are on this Danish site:
Yours doesn't look quite the same but don't know what else it could be.
Entomologist and biological recorder
They look more like the one on the site you show a link to. Not many on the web but plenty of the adult weevil.
Lat/Lng: 51.1786, -3.0722
OS grid ref: ST251426