I went through an insurance situation recently, new for old, after an accident.
The complication was that I quoted lower than the market rate as I bought from panamoz.
They accepted this as genuine as I had receipts showing the amounts; as opposed to it being a scam to get more out of my insurance limit. They replaced without any problems (minus the policy excess). However, they did then advise that I up my insured amount to match the a UK sourced price rather than a corresponding grey price (which I've now done).