My bike (pedal) was written off and my insurance company are paying for a replacement. They said they wanted to sell all salvageable parts. The bike shop who did the assessment and insurance report wrote off front wheel, forks and frame. I've stripped the bike and have binned all written off parts and boxed up all remaining working parts. However insurance company is withholding payment until I can produce written off parts, which I can't.... can they do this?