Dhl stole my package

Dhl stole the goods that were in my shipment and delivered an empty box , I picked up my box in front of my door and it felt very light , so I figured that my goods had been stolen, before I opened the box I started recording I'm opening the box and when I fully opened the box there was nothing but a 3 piece make up case in it . Dhl stole all my goods and sent me an empty box. I'm so frustrated 😡 can someone tell me what should I do?