Indane LPG
Sealed empty Cylinde

I had received an Indane LPG cylinder on 21.04.10. But when I lifted the cylinder to connect to LPG stove 3 days ago, I realized that it was light. When I checked the weight, it was empty. It is still sealed. When I contacted the distributor, he sent a person to check it. He checked the cylinder and opined that nothing can be done because 4 months has already passed since the receipt date. It is still sealed and empty.