Same happened to me in July. Laka, my insurer, won't reimburse. Officially: no sufficient proof of ownership (I provided plenty). I suspect they don't like that the road bike was insured days before getting stolen, which in London is not unheard of. Now looking for any alternative to Laka
Exciting new London bike theft technique just experienced! My 200kg family ebike was securely locked to a tall metal pole which had a big parking restriction sign at the top. Three thieves turned up on Lime bikes with chairs, removed parking sign, then lifted bike 2.5metres over top of pole. Genius.