Thanks for the input, guys. i would have replied sooner but windows 10 decided that I need a large update right away!
The insurance company with the nodding dog were almost next to useless, they would not offer a courtesy car as they are only for while your car is either assessed for write off or while in the repair shop. I may have tried to argued the case but for a 1.0 Corsa I'm not sure it was worth it.
The police who came around said that it was a dilemma whether to leave car keys next to the front door so they get in an out quick or to hide them and risk a confrontation. The only way to drive away in a car is to have the keys nowadays so they will take whatever they can get.
After two weeks I got sent (by the slowest postal method) a claim form which asked me to send off
A Statement
The crime number
The second set of keys
The V5, signed over to them
Any photos of the car, even better if I was included
Purchase invoice
Finance agreement, and any statements showing the current outstanding figure
Note
If you have GAP insurance then they will want the same documents, so you either have to copy them or give authority to them to act on your behalf to work with your insurance company
I was shocked that the final figure the insurance came up with for my 14 month old ES was £11530.00 and just as surprised when the GAP insurance company, who said NOT to agree to any figure (especially the first number they come up with) said the amount was within £50 of what they would have accepted.
On the positive side the GAP paid out £250 more than I was expecting as they included my compulsory excess.