I also have zuritel and have discussed this with them, I think from memory it is called "ausser" something "diebstahl". IE outside your house (includes train station or anywhere).
An ex-flatmate once claimed, and given a police report and orig receipt for the bike (they need something to value it of course) they will give you new value minus a deductible - unless you are really lucky.
Just give em a call :> I am sure you can get someone who speaks english, they can check what your policy covers etc - they won't bite !!
You can get additional insurance if your bike is worth alot - ask them what your policy covers
and you can also get insurance for crashing your bike with TCS.