I had my iPhone stolen still in the box

I had my iPhone stolen still in the box and I would like to know how I can proceed to try to recover my device, I already went to the police and made a report, the police say they can't do anything to help me, the operator still menus for not having had time. to put the operator's chip in the device, I come here to ask for your help, I'm paying without having the device, I have all the papers with imei numbers, serials ... I would like help to locate my device. help me please !