Shiprocket — Package not delivered: AWD [protected]

I have been facing an issue with your courier service. I have booked the package through ShipRocket, and the courier service is Ecom Express. The package has to be delivered on 9th of Aug. But Till the date, it's not been delivered. We are not getting a proper response from You. After a few conversations, they stated false allegations on the parcel, like the address is wrong. But they did not call the customer(I have checked with the customer).