Dissapointed in policy wording - Naked insurance

When I got a new laptop from work I had to get insurance on my name therefor I went with naked insurance that was recommended by a college. The service was very quick and helpful. On the 16th of September I was remote jacked at Tygervalley Centre. I reported the theft immediately and went to the SAPS to get a case number. I did all I could to get footage from Tygervalley centre regarding the incident, but they refused to give me the footage as it is against there policy. Not even the police could assist. So naked insurance declined my claim as I could not provide the footage. What must I do if no one wants to assist. My back was locked in my boot in a closed parking lot. Why insurance if they don't pay for this. Id did everything I could just to get a answer like that....