Right guys would like your opinion on if you think we will be insured or not.
A few weeks ago we were burgled by our next door neighbours

Who have since been caught and prosecuted. Sadly the police were unable to recover anything of significant value although they did recover my boxer shorts

The unrecovered items have a value of around £10,000. So we contacted our insurance and they say we might not be insured due to the back door keys being left in the back door.
I've looked through the policy and it says nothing specifically about leaving the keys in the door. It just says that your house needs to be secure. Now all the doors and windows were locked. The burglars had to climb over a 7ft spiked fence with anti vandal grease on top and the gate was locked. They then used a hooking device through the cat flap. Now i class this as being secure.
Bare in mind this was not some random burglary it was pre planned as they waited for us all to leave the house at the same time ( which is pretty rare ) and then came with tools ( for example taking the Tv's off wall mounts ). There was no way of knowing that the keys were in the door until they actually climbed over so as far as i see it leaving the keys in the door saved us from more cost/damage as its obvious they were determined to get in the house one way or another. Not to mention the fire brigade recommend you leave the keys in the door for fires.
Now do you think we have a leg to stand on?