Jewellery and Watch's Claim rejected

My Home was broken in on the 16th July 2017.A number of items was ******. I put in my claim with Momentum as Sellsure are the brokers. Momentum came back saying that Jewellery and Watch's was not specified from the broker and from the call recording the broker said "NO COVER FOR JEWELLERY AND WATCH's". SellSure Insurance Brokers then investigated and cannot find any recording stating that I the client said I do not want Jewellery and Watch's cover. Therefore Momentum and Sellsure are saying sorry all your hard work of buying your Jewellery and watch's is not covered because SELLSURE said I do not want Jewellery and watch's cover. This is another way Insurance companies take clients for a ride. They accept your monthy premium and as soon as you need them they look for loop holes not to cover. SellSure Insurance Brokers and not taking any blame for this they saying sorry we don't have proof of you asking for Jewellery and Watch's cover