DTDC Courier & Cargo — Plants dead due to shipment delay

I ordered 11 plants in himadri aquatics website on April 25th 2022. They sent the package on 4th may through DTDC courier and cargo. The package came to a local facility on May 9th. They neglected the package for 4 days. Their website shows the package is out for delivery and has been rescheduled for 3 days and on 4th day i.e., may 12th I went to the courier office myself and questioned them about the package and they said they tried to contact me during the delivery but I haven't received any calls from dtdc courier service. I have tried to contact the courier office but there is no contact number for the local dtdc courier office. I tried to contact the main office and after 3 minutes on hold they didn't respond. On 12th May at 3 in the afternoon I went to courier office and I got the package. All of my plants were dead. Please do something about the dtdc courier office