Declined claim for item i was under the impression

Claimed for Rolex watch listed individually on policy reported to police AA not insurance they say they set up policies for 3rd parties.Declined claim as purchased watch second hand no paperwork with serial number but still added to policy as owned by myself.AA say it is Integra they say visa versa have reported them to Financial Ombudsman services why not ask for authenticity/ownership prior to listing individual high value item on olicy and taking extra premiums then when it comes to the crunch you are not insured
KEEP CLEAR will not take any responsibility for policy even though all correspondents/renewals/direct debits for premium are all to AA services Will leave as soon as matter sorted and cancel everything else i have with them including Family Road side cover
Insurance should of requested proof of Authenticity/Ownership before adding high value individual item to policy - Intergra say AA should of done this and AA say Integra should of done this
Though i would be fulky insured going to a large Company - DONT INSURE QUICK TO TAKE PREMIUMS FOR ITEMS THAT YOU THINK ARE FULLY INSURED BUT IN THEIR EYES THEY ARE NOT COVERED WHEN IT COMES TO THE CRUNCH